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Mariners Sign Jacob Nottingham To Minor League Deal

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The Mariners signed catcher Jacob Nottingham to a minor league contract earlier this month, according to his transaction log on MLB.com. This will be his fourth stint with the organization.

Nottingham is a true journeyman, having spent time in seven different MLB organizations throughout a professional career that spans more than a decade. He was drafted by the Astros, who traded him to the Athletics two years later as part of a package for starter Scott Kazmir. The following offseason, the A’s flipped him to the Brewers as part of the return for slugger Khris Davis.

It was with Milwaukee that Nottingham made his MLB debut. He played a handful of games for the Brewers every year between 2018-21, producing a respectable .770 OPS and 103 wRC+ in 99 trips to the plate. His seven home runs and .273 isolated power were particularly impressive, especially for a catcher. On the other side of the ball, he appeared in 36 games behind the dish, compiling 2 Defensive Runs Saved and a +2 Fielding Run Value. Despite the tiny sample size, those defensive numbers were encouraging. Nottingham was always considered a bat-first catching prospect with serious questions about his defense behind the dish.

The backstop became a Mariner in April 2021, although his first stint with the club was short-lived. Seattle claimed Nottingham off of waivers on April 28 only to designate him for assignment and trade him back to Milwaukee on May 2. However, the M’s claimed him again a couple of weeks later, and this time, he stuck around in the organization for the rest of the season. He appeared in 10 games with the Mariners, though he only appeared as a first baseman, designated hitter, and pinch hitter – never as a catcher. Unfortunately, Nottingham performed poorly, going 3-for-26 with 12 strikeouts. He spent most of the rest of the 2021 season on the injured list at Triple-A.

Nottingham has not made it back to the majors since 2021. From 2022-23, he played in the minors with the Orioles, Mariners, Giants, and Nationals, putting up a .745 OPS and a 91 wRC+. He then spent the 2024 campaign playing in the Mexican League. He will now return to affiliated ball, re-joining an organization that clearly likes what he brings to the table. In his age-30 season, Nottingham can provide catching depth for Seattle behind Cal Raleigh, Mitch Garver, Nick Raposo, and top prospect Harry Ford. The Mariners are known to be seeking a right-handed bat this winter, and Nottingham offers depth in that area as well.

Mariners Made Two-Year Offer To Carlos Santana

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The Guardians made a splash over the weekend by signing first baseman Carlos Santana to a one-year deal worth $12MM, bringing the long-time Cleveland staple back into the fold for the third time in his career. With that being said, however, it wasn’t the only contract offer Santana received during his free agency. According to a report from Ken Rosenthal of The Athletic this morning, the Mariners extended an offer to Santana that came with more guaranteed money than the one he landed in Cleveland. Rosenthal also cited the Yankees, Mets, Tigers, Diamondbacks, and Rangers, and Padres among clubs that had interest in the switch-hitter before he ultimately landed in Cleveland.

Regarding Seattle’s offer, Rosenthal specifies that not only did the deal come with more guaranteed money, but it actually involved a player option for the 2026 season, allowing Santana to either opt out and return to free agency or remain with the club. It’s somewhat surprising to hear that a club was willing to guarantee a second guaranteed year to Santana, who will celebrate his 39th birthday in early April. Rosenthal describes the Mariners as Santana’s “initial priority” until the Guardians realized that they could trade Josh Naylor to another Santana suitor, the Diamondbacks. At that point, the Guardians offered Santana (who had coincidentally just sold his Cleveland area home) the one-year deal he went on to sign.

The Mariners briefly acquired Santana from the Phillies during the 2018-19 offseason but flipped him to Cleveland shortly thereafter, before he ever suited up for the club. He eventually returned to the organization in 2022 after being traded there by the Royals, and this time his stay lasted 79 games. In 294 trips to the plate for Seattle, Santana hit .192/.293/.400. Despite that sub-Mendoza Line batting average, Santana’s performance was actually good for an above-average 103 wRC+ thanks to a strong 11.9% walk rate and the 15 home runs he clobbered down the stretch for the club.

That half-season stint evidently made enough of an impression with the Mariners that they were interested in a reunion as they searched for first base help this winter. Earlier this winter, the Mariners were reportedly pursuing a reunion with either Carlos Santana or Justin Turner at first base. Turner is still available, though it’s unclear whether that interest on Seattle’s end has persisted as the first base market has shifted in recent days. Of the six teams besides Cleveland that Rosenthal noted had interest in Santana’s services, three of them have found solutions in the days since: the Rangers replaced Nathaniel Lowe with Joc Pederson, the Yankees signed Paul Goldschmidt, and of course the Diamondbacks traded for Naylor and opened the door for Santana to re-sign in Cleveland.

For the Mariners, Mets, and Padres, there’s still a number of interesting first base options available. Turner has been a reliably above average hitter 11 consecutive seasons now but celebrated his 40th birthday last month, a reality that could give some teams pause about committing to him as a regular option if they can’t offer significant time at DH as well. Pete Alonso is of course the top free agent available at first base, though barring a sudden change in plans by the Padres or Mariners it seems unlikely he would fit the budgets rumored to be in play for San Diego and Seattle. Anthony Rizzo, Mark Canha, Josh Bell, and Yuli Gurriel are among a number of veteran options at the position who could likely be had on a low-cost deal, and the trade market offers the possibility that the Giants could part ways with LaMonte Wade Jr. or perhaps even a deal with the Rays involving Yandy Diaz, who hasn’t been the subject of many trade rumors this winter but appeared to be available prior to this summer’s trade deadline.

Mariners, Nationals, Mets Interested In Paul Goldschmidt

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Veteran first baseman appears to be drawing a lot of interest as a free agent. Bob Nightengale of USA Today reports that the Yankees, Giants, Mariners, Nationals and Mets are all engaged with him. The connections to the Yankees and Giants have been previously covered at MLBTR, as well as interest from the Tigers.

Coming into the winter, the free agent market for first basemen had various intriguing options, but their respective ages gave them different levels of earning power. As part of MLBTR’s annual ranking of the Top 50 Free Agents, Pete Alonso was the top first baseman. Now 30 years old, he was predicted for a five-year, $125MM deal. Christian Walker, who is going into his age-34 season, had a prediction of three years and $60MM. Goldschmidt, now 37, was predicted for $15MM on a one-year deal. Veterans like Justin Turner and Carlos Santana didn’t crack the list but should be in line for one-year deals as well.

Earlier today, the Astros cut out the middle of that market. Walker has reportedly agreed to sign with Houston on exactly the three-year, $60MM deal that MLBTR predicted. For clubs that are still looking for help at first base, there’s now a clear divide between the big-ticket option in Alonso, as well as several other more affordable possibilities. Alonso also rejected a qualifying offer, so he’s also tied to the associated penalties with signing such a player, which depend upon whether a club paid the competitive balance tax this year or is a revenue sharing recipient.

Regardless of how clubs feel about Alonso, some of them will just not be likely candidates to make that kind of a splash in free agency. For those that are looking to make a modest investment at first, Goldschmidt is an intriguing candidate.

As recently as 2022, Goldschmidt was one of the best players at the position. He won National League Most Valuable Player that year, hitting 35 home runs, drawing walks at a 12.1% clip and stealing seven bases. He slashed .317/.404/.578 for a wRC+ of 175 and produced 6.8 wins above replacement, per the calculations of FanGraphs.

But the last two years have been far less impressive. He had a .268/.363/.447 batting line and 122 wRC+ in 2023. In the most recent season, that was down to .245/.302/.414 and a 100 wRC+, exactly league average production. His 7.2% walk rate was the worst of his career. His 26.5% strikeout rate was a personal high, apart from his rookie debut way back in 2011.

That’s downward slope is obviously somewhat discouraging, but Goldy has a strong track record and at least finished strong in 2024. After hitting .230/.291/.373 for an 87 wRC+ in the first half, he posted a .271/.319/.480 line and 120 wRC+ in the second half. The Cardinals aren’t bringing him back as they pivot to a reset year, which involves lowering the payroll. It also means more playing time for younger players like catchers Iván Herrera and Pedro Pagés, which is pushing Willson Contreras to first base.

The Mariners are rarely huge spenders in free agency and are working with budgetary constraints this offseason, reportedly having about $15MM of wiggle room at the moment. It’s been rumored that they are considering Luis Castillo trade offers as a means of opening up some extra room, but they wouldn’t be a likely suitor even in that scenario. They are looking to add multiple infielders and a Castillo trade could perhaps leave them looking to make a rotation addition as well.

Goldschmidt fits well into their offseason plans as they are looking for a right-handed hitting veteran first baseman. They have been connected to Turner and Santana in rumors this offseason, as well as Walker before he agreed to his new deal with the Astros. Goldschmidt is another option they could consider, as he would require a lesser investment than Walker, though likely more than Turner or Santana.

MLBTR’s $15MM projection for Goldschmidt exactly matches what the M’s reportedly have to spend. That wouldn’t leave them any money to get the other infielder they want, likely a third baseman, though perhaps the trade market could help them out there.

The Nationals have been rebuilding for a while but could perhaps be ready to emerge back into contention. Their roster has started to fill up with exciting young talents but president of baseball operations Mike Rizzo said back in September that adding middle-of-the-order bats was a priority this winter.

That kind of addition wouldn’t have to come at first base but it would be the most logical place for it. They have lots of exciting young players for the outfield. CJ Abrams and Luis García Jr. seem to be set in the middle infield. Prospect Brady House is a potential third baseman of the future.

But at first, the Nats gave most of their playing time to Joey Gallo, Joey Meneses and Juan Yepez this year. The club declined a mutual option on Gallo while Meneses was outrighted and has since signed a minor league deal with the Mets. Yepez is still on the roster but is likely viewed as more of a role player than an everyday guy. The Nats also don’t have a strict designater hitter and could theoretically have lots of at-bats to share between Yepez and Goldschmidt or some other external addition.

The Mets technically have a first base vacancy but it would be a surprise to see them put fill it with Goldschmidt. Alonso has been a mainstay there for years and many in the baseball world expect the Polar Bear to wind up back in Queens. If Alonso ends up elsewhere, it’s been expected that the Mets would move Mark Vientos over from third since his defense at the hot corner is not well regarded. That could allow them to pursue someone like Alex Bregman or Nolan Arenado.

It’s clear though that president of baseball operations David Stearns loves short-term deals. Last winter, he signed ten free agents, nine of them getting one-year deals. Sean Manaea got two years but with an opt-out, which he eventually triggered.

This winter, it was thought that he would ramp up the aggressiveness. The 15-year Juan Soto deal certainly qualifies but Stearns has paired that with a pile of far more modest moves. Despite having seemingly unlimited funds to work with, he has given one-year deals to Griffin Canning, Jared Young, Dylan Covey and Justin Hagenman, a two-year deal to Frankie Montas and a three-year deal with an opt-out to Clay Holmes.

Signing Goldschmidt to replace Alonso would likely mean Vientos staying at third base for another year, but that was tolerable in 2024 and he’s only 25 years old, so perhaps he will improve a little with more experience. Guys like Brett Baty, Ronny Mauricio and Luisangel Acuña could perhaps push their way into the infield mix over the course of the year, solidifying the infield group for 2026 and beyond.

Christian Walker Reportedly Seeking Four-Year Deal

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Christian Walker has been a popular target in free agency thus far in the offseason, drawing interest not only from the incumbent Diamondbacks but also the Yankees, Mariners, Astros and Nationals, among other clubs. ESPN’s Jeff Passan writes that interested teams have been unwilling to extend their offers beyond three years but that Walker’s camp “would love to get a fourth year.”

Widespread interest in Walker is only logical. He’s been among the most underrated players in the sport for several seasons. The 33-year-old slugger’s .251/.335/.468 slash from 2024 is a near mirror image of the broader .253/.332/.464 line he carries in nearly 3200 plate appearances dating back to 2019. At the time, it would’ve seemed utterly nonsensical to think that the Diamondbacks would be able to successfully replace perennial All-Star Paul Goldschmidt with a journeyman waiver claim, but Arizona did just that and has been rewarded handsomely.

Not only has Walker been consistently productive at the plate — 13% better than average overall, including 20% better over the past three seasons — he’s emerged as one of the game’s best defenders at his position. Walker has won three straight Gold Gloves for his work at first base. Walker’s 33 Defensive Runs Saved over the past three seasons lead all big league first baseman by a wide margin. Matt Olson is second, at 27. Statcast is even more bullish, crediting Walker with 39 Outs Above Average — nearly double that of second-ranked Carlos Santana (20). He’s made only eight errors since 2022.

Quietly excellent as Walker has been, however, a four-year deal is a lofty ask when considering his age. He’ll turn 34 in March. As shown in MLBTR’s Contract Tracker, only four position players in the past decade have secured a four-year deal beginning in their age-34 season or later: Josh Donaldson (four years, $92MM with the Twins), Ben Zobrist (four years, $56MM with the Cubs), Nelson Cruz (four years, $57MM with the Mariners) and Victor Martinez (four years, $68MM with the Tigers. Donaldson’s deal, now almost five years old, is the most recent of the bunch. Of the four, only Cruz’s contract played out well.

Suffice it to say, four years would break any recent precedent for a position player of this age. Speculatively speaking, he could go the route some other veterans have in the past to secure the additional years they seek on longer-term deals: throw in (in this instance) the fourth year at a discounted rate. General expectations for Walker have been that he’ll command something in the vicinity of $20MM per year. If he were to tack on a fourth year at, say, $8-10MM, that’d get him his fourth season and also lower the luxury-tax hit for the signing club. For many of Walker’s reported suitors, that won’t be a factor, as they’re not CBT payors anyhow. For a team like the Yankees or Astros, it could prove significant.

Walker’s asking price is likely one of the reasons that the Yankees “appear increasingly likely to go with a more inexpensive option at first base,” as reported by Ken Rosenthal of The Athletic. The others include the qualifying offer that’d cost them an additional two draft picks (after already punting two for Max Fried) and the plethora of options available on the free agent market  (Santana, Justin Turner, Goldschmidt) and trade market (Josh Naylor, Yandy Diaz, Nathaniel Lowe).

Latest On Josh Naylor

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10:36pm: Adam Jude of the Seattle Times reports that while the Mariners and Guardians have indeed discussed Naylor, it’s not expected that Cleveland will deal him to Seattle after offloading the Gimenez contract. That aligns with Lloyd’s earlier reporting that Cleveland seemed increasingly likely to hold Naylor.

1:26pm: As the Mariners search for first base upgrades this winter, they’ve had some talks with the Guardians about Josh Naylor, per Jon Morosi of MLB Network. There’s no indication the two parties are in any sort of advanced negotiations, but the fit is a natural one for an M’s club looking to improve its offense and a Guardians squad that has been open to offers on Naylor and outfielder Lane Thomas as they enter their final seasons of club control.

Naylor, 27, is projected by MLBTR contributor Matt Swartz to earn $12MM this coming season before reaching free agency next winter. He’s fresh off a career-high 31 homers and a .243/.320/.456 batting line (118 wRC+) with a 9.2% walk rate and just a 16.6% strikeout rate. The Mariners have been vocal over the past year-plus about wanting to scale back on their teamwide strikeout rate. Adding power and simultaneously reducing strikeout rate are often at odds with one another, but Naylor is the type of bat who can help them achieve both goals simultaneously.

A trade of Naylor for a Cleveland club that just re-signed Shane Bieber and is clearly intent on contending in 2025 might seem counterproductive at first glance, but the perennial tightrope walk of trading quality veterans for young talent while still trying to field a winning club is nothing new for the Guards. They just unloaded Andres Gimenez and his contract in what amounted to a three-team trade bringing hard-throwing righty Luis Ortiz to Cleveland from Pittsburgh. That dropped their expected payroll to around $97MM, per RosterResource. Shedding Naylor would scale that back to $85MM while opening time for Kyle Manzardo at first base (and perhaps creating more room for some smaller-scale free agent additions).

At the same time, it should be noted that a trade of Naylor isn’t a foregone conclusion. The Athletic’s Jason Lloyd wrote recently that he’d gotten the sense a trade of the slugging first baseman was becoming less likely, as the Guards weren’t impressed with anything offered up by other clubs. (A single text or phone call can change that, of course.) Understandably, Cleveland isn’t going to move a player of Naylor’s ability just to shed payroll; they’d need to feel they’re getting legitimate value in return — especially since with a season comparable to his 2022-24 showings, a then-28-year-old Naylor will be a qualifying offer candidate next offseason.

For the Mariners, Naylor would provide a boost to a club that saw Justin Turner reach free agency at season’s end. Turner was the club’s primary first baseman down the stretch last year after a deadline trade bringing him to Seattle. The M’s have Luke Raley as an option at first base, but he could also mix into the outfield and at designated hitter. Prospect Tyler Locklear is ready for a big league look, but a postseason hopeful like the Mariners might not want to just hand first base to an unproven 24-year-old who posted league-average numbers in Triple-A last season and slashed .156/.224/.311 with a 41% strikeout rate in his first 49 MLB plate appearances.

The M’s also have interest in bringing either Turner or veteran Carlos Santana back to Seattle. (Santana played with the M’s in 2023.) The team’s top priority at the moment seems to be upgrading at first base, then adding help at either third or second base — likely the former. In-house options like Dylan Moore, Ryan Bliss and (eventually) top prospect Cole Young could factor in at second base if the end result is upgrading at both corners.

Naylor’s projected salary likely fits within the Mariners’ reported budget — about $15MM to spend, give or take, per Adam Jude of the Seattle Times — but probably doesn’t leave room for another notable addition. The Mariners would surely love to find a way to unload the contracts of Mitch Haniger $15.5MM in 2025) and/or Mitch Garver ($12.5MM in 2025), but either would be a tall task. The presence of those cumbersome contracts, coupled with a second offseason headlined by a tight budget from ownership, make another round of trades from the ever-active Seattle front office likelier than a series of free-agent splashes aimed at once again revamping an offense that has struggled to produce in a highly pitcher-friendly setting.

Mariners Claim Nick Raposo

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2:20pm: The Mariners have now announced the claim. Their 40-man roster is up to 38 players.

1:00pm: The Mariners have claimed catcher Nick Raposo off waivers from the Blue Jays, MLBTR has learned. The latter club designated him for assignment last week. The Mariners had 40-man roster vacancies and didn’t need to make a corresponding move.

Raposo, 27 in June, still hasn’t made his major league debut. The Cardinals added him to their 40-man roster in June when both Willson Contreras and Iván Herrera were on the injured list, but Contreras was reinstated a few days later. Raposo was optioned to the minors without getting into a game. He was designated for assignment in July when the Cards added Erick Fedde and Tommy Pham in a deal just before the deadline. He was claimed by the Jays and stuck on their roster until last week, getting designated for assignment again when Toronto signed Yimi García.

Over the past four years, Raposo has taken 808 plate appearances in the minors. He has a combined batting line of .241/.321/.387 in that time, which translates to a wRC+ of 85. Baseball Prospectus has generally given him solid marks for his blocking and throwing in the minors.

The Mariners only really have one proper catcher on the 40-man roster right now in Cal Raleigh. They also have Mitch Garver, who they signed last offseason with the idea of using him as a full-time designated hitter. That plan didn’t work out as Garver struggled with the bat in 2024, so the M’s did eventually put him behind the plate a few times, either to try to extract some value from him or with the hope that returning to catching would somehow help get back in a groove offensively. Seby Zavala was the third backstop to play for the M’s in 2024 but he was outrighted off the roster in September and signed a minor league deal with the Red Sox last month.

It’s unclear how the M’s plan to tackle their catching situation in 2025, apart from Raleigh being the obvious mainstay. If Garver is the backup, then Raposo can serve as an optionable depth piece in Triple-A. If Garver is going to be heavily in the DH mix, Raposo could battle for the backup job. The nature of that battle will depend on who else the M’s bring in, whether that’s veterans on non-roster deals or perhaps other waiver claims such as this one.

Mariners To Re-Sign Josh Fleming To Minor League Deal

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The Mariners are going to sign left-hander Josh Fleming to a minor league deal, reports Robert Murray of FanSided. The Republik Sports client also receives an invite to major league spring training.

Fleming, 29 in May, just signed a minor league deal with the Mariners in August. He made 19 appearances for their Triple-A club down the stretch, allowing 4.50 earned runs per nine innings. He didn’t get added to the roster and became a free agent at season’s end, though has now circled back the M’s on a fresh deal.

The southpaw has appeared as a swingman in each of the past five major league seasons, mostly with the Rays but also with the Pirates. He has appeared in 80 major league games, including 25 starts, tossing 254 2/3 innings with a 4.77 ERA. His 14.6% strikeout rate is well below par but his 7.5% walk rate is good and his 58.4% ground ball rate quite strong. Among pitchers with at least 250 innings pitched from 2020 to the present, only five of them have a better grounder rate than Fleming: Clay Holmes, Andre Pallante, Framber Valdez, Emmanuel Clase and Logan Webb.

Fleming’s strikeout rate is far lower than everyone in that group, which has prevented him from posting especially strong results, but he’s been serviceable enough to serve as a solid depth piece. On a minor league deal, there’s no risk for the M’s.

Seattle has a very strong rotation but the depth is a little concerning. Luis Castillo, George Kirby, Logan Gilbert, Bryce Miller and Bryan Woo are an excellent front five but things get flimsy beyond that. There have been some trade rumors surrounding Castillo this winter, which could lead to Emerson Hancock or Jhonathan Díaz moving up to the number five spot. In the bullpen, guys like Matt Brash and Jackson Kowar are working back from Tommy John surgeries, while Gregory Santos spent most of 2024 on the injured list due to arm issues.

Fleming gives the club a bit of depth for both areas without taking up a roster spot. If he gets added at any point, he is out of options but has less than four years of service time, meaning he could be retained into future seasons via arbitration.

MLBTR Podcast: Kyle Tucker To The Cubs, And Trades For Devin Williams And Jeffrey Springs

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The latest episode of the MLB Trade Rumors Podcast is now live on Spotify, Apple Podcasts, and wherever you get your podcasts! Make sure you subscribe as well! You can also use the player at this link to listen, if you don’t use Spotify or Apple for podcasts.

This week, host Darragh McDonald is joined by Anthony Franco of MLB Trade Rumors to discuss…

Check out our past episodes!

The podcast intro and outro song “So Long” is provided courtesy of the band Showoff.  Check out their Facebook page here!

Mariners Sign Drew Pomeranz To Minor League Deal

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The Mariners and veteran left-hander Drew Pomeranz are in agreement on a minor league deal, as previously reported by Aram Leighton of Just Baseball. The deal presumably includes an invite to major league Spring Training.

Pomeranz, 36, is a veteran of 11 MLB seasons but hasn’t throw a pitch in the majors since 2021. The lefty was generally a solid player who swung between the back of the rotation and bullpen in the early part of his career, often garnering solid results in relief but lackluster numbers in the rotation. Across the first eight seasons of his MLB career, Pomeranz pitched to a 3.92 ERA (110 ERA+) with a 4.14 FIP in 710 innings of work split between 122 starts and 74 relief appearances. The start of the 2019 season was more of the same for Pomeranz, as he struggled in a swing role with the Giants. He posted a 5.68 ERA ERA with a 5.24 FIP in 77 2/3 innings of work.

Those lackluster numbers led San Francisco to deal the lefty to Milwaukee at that year’s trade deadline, and Milwaukee decided to move Pomeranz to the bullpen full-time, converting him into a high leverage relief arm. The lefty looked like a totally different player down the stretch in 2019, dominating to the tune of a 2.39 ERA with a 2.68 FIP with an eye-popping 45% strikeout rate. That stellar performance earned Pomeranz plenty of interest in free agency that winter, and prior to the 2020 season he signed with the Padres on a four-year deal worth $34MM that ran through the 2020-23 seasons. Pomeranz continued to dominate when healthy enough to take the mound for San Diego, with an incredible 1.62 ERA and 2.75 FIP to go with a 33.7% strikeout rate during the life of that contract.

Unfortunately for Pomeranz, however, he managed just 44 1/3 innings of work over the life of the contract due to shoulder, forearm, and elbow injuries. After not pitching in the majors during the 2022 or ’23 seasons, Pomeranz returned to the free agent market and caught on with the Angels and Dodgers on minor league deals but was unable to crack either L.A. roster. Eventually he earned a big league opportunity with the Giants in May, but lasted just a few days on the club’s roster before being designated for assignment without making an appearance. In total, he made just eight appearances at Triple-A for the Dodgers this past season, struggling to a 6.00 ERA but flashing an excellent 37.8% strikeout rate.

That big strikeout stuff clearly caught the attention of the Mariners, who have now picked him up as a no-risk flier who could still contribute to the club’s late-inning mix if he can finally get healthy enough to make it back to the majors. The Mariners have an impressive bullpen mix that includes Andres Munoz, Matt Brash, Collin Snider, and Gregory Santos but lacks a true back-end option from the left-hand side.

Mets, Orioles Among Teams To Inquire After Luis Castillo

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Mariners right-hander Luis Castillo has received plenty of interest from various clubs amid a hot market for starting pitching this winter, with the Red Sox and Cubs among the teams who have been connected to the right-hander so far. A report from The Athletic’s Ken Rosenthal this evening name-checks two more clubs who have “at least inquired” after the veteran: the Mets and the Orioles. With that said, however, Rosenthal emphasizes that Mariners are only willing to deal Castillo if the return package improves the big league club as they look to return to the postseason next year.

Both clubs are certainly sensible suitors for the right-hander. The Mets have already added Clay Holmes and Frankie Montas to a rotation that entered the offseason with only Kodai Senga and David Peterson locked into starting roles for 2025, but those additions offer little certainty to the Mets. That makes a steady and reliable arm like Castillo’s a sensible choice for that final rotation spot in Queens, but it’s unclear whether New York has the big-league ready pieces to offer Seattle in order to facilitate a deal. Top prospect Luisangel Acuna would surely be attractive to the Mariners as a big league ready infield option who looked good in a 14-game cup of coffee with the Mets last year, but the soon-to-be 23 year old could be a major factor in the club’s plans for 2025 given his ability to not only play the infield and also a strong center field. That figures to be particularly true if the Mets fail to re-sign Pete Alonso and move Mark Vientos to first base, which would seemingly open up regular playing time for Acuna at either second or third base.

The Orioles, by contrast, have a surplus of talent around the infield that could be attractive to the Mariners as they look for a front-of-the-rotation arm to replace free agent hurler Corbin Burnes. In particular, the club has a bit of a logjam at first base that the Mariners could stand to benefit from. While it’s unclear if Baltimore would be willing to part ways with top prospect Coby Mayo, Ryan Mountcastle and Ryan O’Hearn were forced to share first base duties last year thanks to a crowded positional mix that figures to only become more cramped with the growing playing time needs of youngsters like Mayo, Heston Kjerstad, and Jackson Holliday. With Holliday poised to take over second base on an everyday basis in 2025, it’s also possible that a veteran infielder like Ramon Urias could be available for the Mariners in a deal.

Another obstacle to a potential Castillo deal, Rosenthal writes, is that parting ways with the right-hander could leave the club thin on rotation depth. While their top four of Logan Gilbert, George Kirby, Bryce Miller, and Bryan Woo would remain among the strongest in the sport, big league ready options like Emerson Hancock and Jhonathan Diaz don’t provide much confidence for the Mariners’ back-end. One solution to that problem, of course, could be a young pitcher heading back to Seattle as part of the return for Castillo. The Cubs (Jordan Wicks and Javier Assad), Red Sox (Richard Fitts and Cooper Criswell), Mets (Tylor Megill and Paul Blackburn), and Orioles (Cade Povich and Trevor Rogers) all have players on the rotation bubble who they could at least theoretically make available in trade talks with the Mariners, should improving rotation depth be key to a deal from Seattle’s perspective.

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