The Opener

As the stretch run of MLB’s 2023 regular season continues, here are three things we’ll be keeping an eye on around the baseball world throughout the day:

1. Lawlar to debut:

The Diamondbacks are expected to promote top infield prospect Jordan Lawlar prior to tonight’s game against the Cubs. The club already cleared space for Lawlar on the active and 40-man rosters by designating Nick Ahmed for assignment last night, so no corresponding moves will be necessary to select Lawlar. A consensus top-25 prospect who even reaches the top-10 of some lists, the 21-year-old Lawlar was selected sixth overall in the 2021 draft and is widely considered to feature plus tools across the board. He’s had a particularly successful season in the minor leagues this year, slashing an impressive .278/.378/.496 in 490 trips to the plate between the Double-A and Triple-A levels despite facing much older competition. Going forward, Lawlar figures to slot into the Arizona lineup at third base. His first assignment will be taking on 25-year-old right-hander Javier Assad (2.69 ERA in 87 innings) at Wrigley Field this evening.

2. Garcia to undergo MRI:

As noted by Evan Grant of the Dallas Morning News, Rangers manager Bruce Bochy told reporters following last night’s loss that outfielder Adolis Garcia is scheduled to undergo an MRI today. Garcia exited yesterday’s game with what was termed “right knee discomfort” after crashing into the outfield wall while trying rob a home run off the bat of Michael Brantley. With the postseason rapidly approaching and the Rangers now on the outside-looking-in of the playoff picture, half a game back of the Blue Jays for the final AL Wild Card spot, Garcia missing anything more than a couple of days would be nothing short of devastating for Texas.

A second-time All Star in 2023, Garcia has paired excellent outfield defense with a .244/.322/.494 slash line in 580 trips to the plate, good for a wRC+ of 118. His 34 home runs this season leave him with the third best total in the AL and tied for eighth on the major league leaderboard with Braves third baseman Austin Riley. Only the club’s big-money middle infield duo of Corey Seager and Marcus Semien have accrued more fWAR than Garcia for the Rangers this season. In the event Garcia misses significant time, the Rangers would likely have to turn to Travis Jankowski as a regular in their outfielder down the stretch or promote top prospect Evan Carter, who was only recently elevated to Triple-A after slashing .284/.411/.451 at the Double-A level.

3. Will Grichuk go unclaimed again?

The Angels have reportedly placed outfielder Randal Grichuk back on waivers, once again leaving the 32-year-old veteran’s future with the club up in the air. Grichuk was the only player to go unclaimed when the Angels placed half a dozen veterans on expiring contracts on waivers late last month, with Lucas Giolito, Reynaldo Lopez, Matt Moore, Dominic Leone and Hunter Renfroe each finding new homes.

While Grichuk is still just a league-average bat on the year and would be ineligible to join a club’s postseason roster, he’s gotten hot recently with a .333/.379/.630 slash line in eight games since first being put on waivers at the end of August. It’s at least conceivable that a team in the thick of the playoff race with a need for outfield help could claim him and look to ride his recent hot stretch through the remainder of the regular season. The Marlins, as one example, recently lost Jorge Soler to the injured list, while the Giants are in need of an offensive boost after posting league-worst figures since the All Star break. Grichuk has been particularly effective against lefties, slashing .314/.375/.559 in 112 plate appearances this season.

As the final month of the 2023 regular season continues, here are three things we’ll be keeping an eye on around the baseball world throughout the day today:

1. When will Ohtani return?

Two-way superstar Shohei Ohtani was out of the lineup again last night, though after yesterday’s game Angels manager Phil Nevin indicated to reporters (including Jeff Fletcher of The Orange County Register and The Athletic’s Sam Blum) that Ohtani’s situation is day-to-day. Nevin added that while Ohtani was dealing with some inflammation in his oblique, he had avoided a strain. The frontrunner for the AL MVP award is expected to play again this season, and even wanted to return to the lineup yesterday. He’ll be evaluated before today’s game to determine if he needs further rest before returning to the field. Ohtani avoiding a more significant injury is surely a relief for Angels fans, as the pending free agent is putting together a historic campaign with a 178 wRC+ in the batter’s box and a 31.5% strikeout rate on the mound, though he’s been shut down from pitching for the rest of the season.

2. Marlins to recall Cabrera:

The Marlins are expected to recall right-hander Edward Cabrera to start this evening’s game against the Dodgers, as relayed by Barry Jackson of the Miami Herald. 25-year-old Cabrera started the 2023 season as a member of the club’s rotation, but was then shelved by a shoulder impingement for a little over a month. Upon returning, Cabrera posted a 5.40 ERA and 6.06 FIP and struggled with stamina, pitching just ten innings across three starts. That led the club to option Cabrera to Triple-A, where he’s managed to build back up to 100-pitch outings while posting an impressive 2.22 ERA across five starts. If he’s able to continue his hot stretch in the major leagues, he could provide a spark for Miami, with the club just half a game back in the race for the final NL Wild Card spot.

3. Verlander and Scherzer face-off:

Future Hall of Famers Justin Verlander and Max Scherzer were teammates for the second time in their careers just over a month ago, at which point both were traded to the AL West by the Mets. Scherzer, who was shipped to the Rangers a few days before the trade deadline, has dominated with a 2.21 ERA and 2.47 FIP across six starts since joining the club. Verlander’s reunion with the Astros has gotten off to a more pedestrian start, with a 3.86 ERA and 4.69 FIP in six starts. Despite the disparity in recent numbers, the pitchers’ duel is sure to make the season series’s rubber match between the two clubs an interesting one. The Astros currently sit half a game ahead of the Rangers in the AL West standings after taking the first two games in this three-game set.

We’ve already had one morning roster move, and here are three additional things we’ll be keeping an eye on around the baseball world throughout the day today:

1. Ohtani to undergo testing:

On the heels of the two-way superstar’s agent discussing his client’s UCL injury with reporters, Shohei Ohtani exited yesterday’s game due to oblique discomfort. Manager Phil Nevin described Ohtani as “pretty sore” (as relayed by MLB.com’s Rhett Bollinger) and while Sam Blum of The Athletic notes that the club did some preliminary testing last night, Nevin didn’t have enough information to share much of anything else.

With Ohtani already done pitching for the year and his agent indicating that some sort of elbow surgery is inevitable for him, even a relatively mild oblique strain could potentially see Ohtani’s season come to an end with so little time on the calendar remaining and an impending surgery looming. Even if Ohtani has suited up for the final time this season, he’s a strong candidate for the AL MVP award; in 599 trips to the plate this season, he’s slashed an incredible .304/.412/.654 — all while also posting a 3.14 ERA and 31.5% strikeout rate in 132 innings while on the mound.

2. Eovaldi to return:

Rangers right-hander Nathan Eovaldi is set to take the mound in Arlington for this evening’s game against the Astros. It will be Eovaldi’s first appearance in the big leagues since he went on the injured list with a forearm strain shortly after the All-Star break. The 33-year-old veteran’s return figures to be a massive boost to the Texas rotation, which added both lefty Jordan Montgomery and veteran ace Max Scherzer in his absence. In 19 starts prior to his injury this season, Eovaldi pitched like an ace in his own right, with a 2.69 ERA and 3.23 FIP in 123 2/3 innings of work. Eovaldi’s return could indicate the end of either right-hander Dane Dunning’s or lefty Andrew Heaney’s time in the rotation, though it’s also possible the Rangers could opt for a six-man rotation down the stretch in hopes of preserving the health of their veteran arms for a hopeful postseason run. Eovaldi himself could be on a pitch count early on; he’s been throwing bullpen sessions but is returning from a roughly six-week absence without making a minor league rehab appearance.

3. MLBTR Chat:

The end of the season is fast approaching, and the league’s 30 clubs are all pushing full steam ahead into the stretch run. While some teams are already looking ahead to 2024, many are focused on the current pennant chase, with more than half the league still boasting 20% or higher playoff odds, per Fangraphs. If you’re curious how your team will hold up over the season’s final month or what their plan for the future is, MLBTR’s Steve Adams is hosting a live chat with readers at 1pm CT today. You can click here to ask a question in advance, join in live once the chat begins, or read the transcript once the chat is complete.

Here are three things we’re watching on this holiday Monday…

1. Labor Day games:

It is Labor Day, which means the slate of games is a little more interesting than a typical Monday. There are 11 games on the docket today, starting at 1:10 Central with the White Sox and Royals, continuing all the way until 8:38 with the Angels hosting the Orioles. Some matchups with playoff implications include the Astros facing off against the Rangers while the Guardians host the Twins.

2. Giolito’s debut with Guardians:

The Guardians were able to claim three pitchers off waivers from the Angels recently, which was a salary-dumping move for the latter club. That allowed the Guards to bolster their pitching staff for the home stretch as they try to chase the Twins in the American League Central, with Lucas Giolito being the most significant addition. He’ll be taking the ball today in Cleveland as the club starts an important three-game set against Minnesota.

3. Holliday to Triple-A:

Jackson Holliday is jumping from Double-A to Triple-A, reports Steve Melewski of MASNsports.com. The 19-year-old shortstop is the consensus #1 prospect in the sport and will now be joining his fourth level of the year. He’s gone from Single-A to High-A to Double-A and will now jump to the top level of the minors, having hit a combined .333/.451/.517 this year. Despite his youth, will the Orioles consider a fifth level with a major league promotion in the final weeks of the season?

With the calendar now officially flipped to September, here are three things we’ll be keeping an eye on around the baseball world throughout the weekend:

1. September Call-Ups:

Today is September 1, which means that active rosters have expanded to 28 for the remainder of the regular season. That leaves each team to add two additional players to their active roster: one pitcher and one position player in most cases. Some teams, including the Tigers and Cubs have already indicated which players they’ll be adding to the roster, while others are waiting for today to make the announcement. Between the additional roster spots available and the fact that players who debut this time of year retain rookie eligibility headed into the following season, organizations often use this time of year to promote prospects and get their feet wet at the big league level. The Yankees are taking that route with both outfield prospect Jasson Dominguez and catcher Austin Wells, for example. Of course, other teams use the opportunity to add veteran players who were in the organization on a minor league deal such as the Dodgers who are expected to select second baseman Kolten Wong to the roster.

2. Angels roster reconstruction:

September call-up season for the Angels arrives on the heels of Lucas Giolito, Reynaldo Lopez, Matt Moore, Dominic Leone and Hunter Renfroe all departing the organization after being claimed on waivers yesterday. That left the club with a whopping seven spots to fill on the active roster last night. Two of those spots have already been filled by the recall of right-hander Jose Marte and the contract selection of outfielder Kyren Paris, meaning the club still has five open slots on the active roster that must be filled before tonight’s game against the A’s, which will begin at 8:40pm CT. The club’s 40-man roster stands at 36, giving Anaheim’s front office plenty of flexibility as they look to make the necessary additions.

3. Suarez to return:

When Phillies left-hander Ranger Suarez hit the injured list in August with a hamstring strain, he told reporters that the strain was mild and he hoped to return not long after the 15-day minimum. It seems he wasn’t far off in that estimation, as Suarez is expected to return to big league action on Sunday against the Brewers in Milwaukee. As noted by Todd Zolecki of MLB.com, Suarez will pitch a final bullpen session today before plans for him to return this weekend are set in stone.

The 27-year-old southpaw’s return should be a noticeable boost for the Phillies as they look to secure the first NL Wild Card spot this September. In 17 starts this season, Suarez has posted a 3.88 ERA with an identical 3.88 FIP in 97 1/3 innings of work. That quality mid-rotation performance has helped the Phillies remain competitive despite a down year from right-hander Aaron Nola, who finished fourth in NL Cy Young award voting last year but has posted a lackluster 4.30 ERA in 27 starts this season.

As the month of August comes to a close, here are three things we’ll be keeping an eye on around the baseball world throughout the day today:

1. Postseason eligibility for external additions ends today:

With several quality names currently on the waiver wire and more potentially useful pieces available through free agency, teams and players will have to match up by 11:59pm ET tonight in order for players to retain postseason eligibility with their new organizations. That won’t be an issue in the case of waiver wire players like Lucas Giolito, Matt Moore, Randal Grichuk, Hunter Renfroe and Harrison Bader, as the waiver period on those players ends this afternoon. Players who were recently released or elected free agency, such as Josh Donaldson, Adam Kolarek and Trey Mancini, will presumably look to find a new home before the end of the night. While they could sign with a club in September, they would only be eligible to participate in regular season games for the major league club.

2. AL West turns toward September:

Every team in the AL West has a day off today, leaving the Mariners, Astros, and Rangers bunched within half a game of each other at the top of the division as the calendar flips to September. Houston has something of an advantage headed into the season’s final month due to the easiest strength of schedule among the three clubs, including six games against the Royals and three against the A’s, though Seattle arguably has the most control over its own fate among the three clubs. The final three series of the Mariners’ schedule are on the road against the Rangers (3 games), at home against the Astros (3 games), and at home against the Rangers (4 games). Given the number of intra-divisional games at the end of the schedule with three teams still in hot pursuit of the division title, it seems likely that the AL West race will go down to the wire this season.

3. Series Preview: Braves @ Dodgers

The Braves have started their west coast road trip on a strong note to this point, taking two of three against the Giants at Oracle Park before sweeping the Rockies at Coors Field. Meanwhile, the Dodgers posted an identical record in taking two of three from the Red Sox at Fenway while sweeping the Diamondbacks at home. The two titans of the NL will clash in a four-game set starting today at Dodger Stadium. With both clubs already all but guaranteed a bye in the postseason, the coming series provides a possible preview of the 2023 NLCS, in addition to a rematch of the same series from both 2020 and 2021.

Right-hander Spencer Strider (3.46 ERA) will take the mound this evening against fellow righty Lance Lynn (5.56 ERA), who despite weak overall numbers this season sports a sterling 2.03 ERA in five starts since being traded to Los Angeles. While the Dodgers haven’t announced the starter who will take on right-hander Bryce Elder (3.50 ERA) on Saturday, Friday will see a matchup of southpaws Max Fried (2.85 ERA) and Julio Urias (4.41 ERA). On Sunday, 39-year-old veteran Charlie Morton (3.29 ERA) will face off against 24-year-old rookie Bobby Miller (4.00 ERA).

On the heels of a day littered with surprising transactions, here are three things we’ll be keeping an eye on around the baseball world throughout the day today:

1. Waiver Wire Madness:

Yesterday saw multiple teams put quality players on waivers in somewhat surprising moves. The White Sox placed right-hander Mike Clevinger on waivers, while the Yankees and Tigers did the same with center fielder Harrison Bader and right-hander Jose Cisnero, respectively. The Angels shook things up the most by waiving right-hander Lucas Giolito, outfielders Hunter Renfroe and Randal Grichuk, and relievers Matt Moore, Reynaldo Lopez, and Dominic Leone.

Teams will get the opportunity to pluck each of these players off waivers for nothing but the remaining money on their contracts in reverse order of the standings. Teams out of contention who get some of the first cracks at the players in question, like the A’s and Royals, are unlikely to add salary to their books for pure rentals when they have no hope of a playoff run. That leaves contenders lower on the waiver priority order like the Marlins, Reds, Red Sox, Diamondbacks, Giants and Twins most likely to add these players, though it’s possible a team like the Padres lower in the standings with a willingness to add salary could look to add some of these players in hopes of making a miracle run in the season’s final month.

If anyone from this the group goes unclaimed, their former team does not have to outright them to a minor league affiliate; the player can simply be retained on the Major League roster and continue playing out the season. The club could also choose to outright any of those players to a minor league affiliate, at which point they’d be able to reject the assignment in favor of free agency and retain their full salary (as is the right of all players with five-plus years of Major League service). Any player who does so and signs with a new team prior to 11:59pm ET on Aug. 31 would be eligible for his new club’s postseason roster.

2. Braves starter to make MLB debut:

The Braves are planning to hand the ball to right-hander Darius Vines for tonight’s start against the Rockies in Colorado. Vines, 25, will make his major league debut upon taking the mound this evening. A seventh-round pick in the 2019 draft, Vines put up solid numbers in both the 2021 and 2022 seasons but battled shoulder inflammation earlier this year. In the minors this season, Vines owns a 2.70 ERA across nine starts (43 1/3 innings) including a 2.86 ERA in five starts (28 1/3 innings) at the Triple-A level. Vines is already on the active roster, so no corresponding moves related to Vines will be necessary prior to today’s game.

3. Milestones approach for Harper, McCutchen:

There’s a race to reach the 300 home run milestone in Pennsylvania, as both Philadelphia’s Bryce Harper and Pittsburgh’s Andrew McCutchen sit at 299 for their careers. 157 players in major league history have hit 300 home runs in their career, and both players will tie Hall of Famer Chuck Klein, who played for both the Phillies and Pirates as well as the Cubs during the 1930s, on the career home run leaderboard upon slugging No. 300. McCutchen is batting .249/.368/.389 with 12 home runs in the 15th season of his big league career, while Harper is slashing .309/.402/.497 with 14 homers during his 12th major league season.

As the 2023 season continues, here are three things we’ll be keeping an eye on around the baseball world throughout the day today:

1. Brantley nearing return:

Astros veteran Michael Brantley hasn’t played in a major league game since June 26 of last year due to difficulties while rehabbing from right shoulder surgery he underwent last summer. The 36-year-old outfielder appears to be on the brink of returning, however, with signs pointing to Brantley’s 2023 debut coming as soon as today. When Brantley takes the field, it will mark his fifteenth season as a big leaguer. Brantley is on the 60-day IL, meaning the Astros will need to make room for him on both the active and 40-man rosters before he can return to action.

The veteran outfielder will add an additional left-handed bat to the Houston lineup alongside Yordan Alvarez and Kyle Tucker, and could prove to be a potentially impactful one as well; Brantley sports a .306/.368/.464 slash line with a 128 wRC+ since joining the Astros in 2019. With the exception of an injury-marred, 11-game season in Cleveland back in 2016, he hasn’t had a below-average offensive campaign since 2011. Brantley’s return seems likely to cut into the time at DH available to young catcher Yainer Diaz, which could in turn mean Diaz takes more starts behind the plate away from veteran Martin Maldonado going forward.

2. Harris teases external 40-man add:

As noted by Evan Petzold of the Detroit Free Press, Tigers president of baseball operations Scott Harris spoke to 97.1 The Ticket yesterday morning about the club’s vacancy on the 40-man roster after infielder Isan Diaz elected free agency. Harris suggested that he is “going to try to fill that spot soon,” though he also added that the roster-move “would not be a call-up” of a prospect not yet on the 40-man roster like Colt Keith or Justyn-Henry Malloy. Petzold suggests that a recently DFA’d veteran like Noah Syndergaard or Jurickson Profar could receive a big league deal from the club, similar to the club’s addition of catcher Carson Kelly earlier this month.

3. Acuna approaches history:

Braves outfielder Ronald Acuna Jr. has long been considered the favorite in the NL MVP race, even as teammate Matt Olson, former teammate Freddie Freeman, and fellow right fielder Mookie Betts have made strong cases for themselves in recent weeks. Acuna had another big night yesterday in spite of a wild incident in which a pair of fans rushed him on the field in Denver, hitting his 29th home run of the season while stealing two bases.

Acuna now sits at 61 stolen bases on the season, having extended his major league lead in the category over Oakland’s Esteury Ruiz to 10, and his NL lead over Arizona’s Corbin Carroll to a whopping 21. With a 60-bag season already secured, Acuna is just one home run away from becoming the first player in major league history to post a 30-60 season. Overall, Acuna is hitting .335/.418/.572 with a wRC+ of 166 in 601 trips to the plate this season.

As an eventful month of August winds down, here are three things we’ll be keeping an eye on around the baseball world throughout the day today:

1. Who will replace Thor?

The Guardians designated right-hander Noah Syndergaard for assignment yesterday, ending his tenure in Cleveland after just six starts. Upon announcing the move, the club indicated that a corresponding move would be made today, before this evening’s game against the Twins in Minnesota. Syndergaard’s departure leaves the club with just four pitchers in the starting rotation: right-handers Gavin Williams, Tanner Bibee and Xzavion Curry as well as lefty Logan Allen. Left-hander Joey Cantillo and righties Peyton Battenfield and Hunter Gaddis are the club’s starting options already on the 40-man roster, though with Syndergaard’s depature the club will have the opportunity to explore other options as well without the need for a 40-man roster move.

Of course, with an off-day on Thursday and right-hander Cal Quantrill nearing a return from the shoulder inflammation that’s kept him off the big league mound since early July, the club could simply decide to wait on adding a starter until Quantrill is ready or the schedule forces the issue. In that case, a reliever currently at Triple-A like lefty Tim Herrin or righty Cade Smith could be called up for the interim to help out in the club’s bullpen.

2. Giants getting healthy:

The Giants are expecting to welcome back a pair of outfielders into the mix during the club’s series against the Reds, which starts today. Alex Pavlovic of NBC Sports Bay Area relayed yesterday that both Mike Yastrzemski and Mitch Haniger are nearing a return, with Haniger having participated in what could be his final rehab game last night while Yastrzemski ran the bases. Both players will be welcome additions to a beleaguered offense in San Francisco; as a team, the Giants slashed just .209/.289/.343 in July, and their slash line of .230/.299/.348 in August is only marginally better.

Yastrzemski has been a slightly better than league average bat with the Giants this year, slashing .233/.314/.439 in 77 games before going on the IL with a hamstring strain. Haniger, on the other hand, struggled badly to a .230/.281/.372 slash line in 40 games with his new club before he was sidelined due to a forearm fracture that required surgery. The Giants will need both Yastrzemski and Haniger to play closer to their career wRC+ numbers of 113 and 119 respectively if they are to get back into the NL Wild Card mix, as the club has fallen a game and a half behind the Diamondbacks for the last spot in recent days.

3. Brewers head to Wrigley:

The Cubs and Brewers will meet for their third series of the season today. The three-game set will have major implications for the NL Central race headed into the season’s final month. Milwaukee, riding an eight-game winning streak, heads to Chicago with a four-game lead over the Cubs in the division, meaning even a sweep by the north siders wouldn’t end their reign at the top of the division standings. That being said, a series win by the Brewers would put the club firmly in the driver’s seat for a division title headed into the season’s final month, as they’d extend their lead over the second-place Cubs to five or six games with only three more games against Chicago on the schedule this season. Brewers lefty and former Cub Wade Miley (3.18 ERA) will take the mound at 7:05pm CT this evening opposite Cubs right-hander Jameson Taillon (5.60 ERA) for the first game of the series.

As the 2023 regular season continues, here are three things we’ll be keeping an eye on around the baseball world throughout the day today:

1. Jansen to be re-evaluated:

Red Sox closer Kenley Jansen was pulled from Wednesday night’s game due to tightness in his right hamstring. Per MLB.com, the club plans to evaluate Jansen further upon returning to Boston today. Jansen told reporters that he “felt great” yesterday and was hoping to avoid a trip to the injured list. The 68-60 Red Sox are still in the hunt for the playoffs, with a 3.5 game deficit to make up for in the Wild Card standings. A healthy and effective Jansen will be key to the club’s playoff aspirations, as the four-time All Star has posted a 2.81 ERA while racking up 29 saves in 46 appearances this season. Should Jansen require a trip to the shelf, Chris Martin seems like the most likely candidate to take over for Jansen in the ninth inning.

2. Who’s starting for the Cubs this weekend?

Cubs president of baseball operations Jed Hoyer announced yesterday that the club plans to move left-handed Drew Smyly to the bullpen going forward, raising questions regarding who will take the ball for Smyly’s previously-scheduled start on Sunday. Right-hander Hayden Wesneski (4.46 ERA) made 11 starts for the club earlier in the season, but has excelled in a multi-inning bullpen role with a 2.45 ERA in 22 innings since leaving the rotation.

If the club doesn’t want to change Wesneski’s role, they could look to the minor leagues where 2021 first-round pick Jordan Wicks has posted a 3.55 ERA in 91 1/3 innings between the Double-A and Triple-A levels this year. One intriguing option would be right-hander Shane Greene, a long-time big league reliever who has been stretched out to longer appearances at Triple-A since joining the Cubs on a minor league deal. In his most recent appearance, Greene posted five scoreless innings with the club’s affiliate in Iowa, striking out six while walking just one.

3. Where will Garrett land?

The Guardians granted left-hander Amir Garrett his release yesterday, allowing the veteran southpaw to return to the open market. With one week remaining before September 1, after which point players who join a new organization will no longer be postseason eligible, time is of the essence as Garrett looks to catch on with a new team.

The 31-year-old posted a solid 3.33 ERA in 24 1/3 innings with the Royals earlier this season, though he also walked a whopping 17.9% of batters he faced during that time. While he only recorded 4.2 innings of work with the Guardians at Triple-A, his wildness didn’t appear improved there, as he walked four in that time. Still, given the scarcity of external relief options this time of year, particularly ones who throw from the left side, it seems reasonable to expect Garrett to find a new home in the coming days. The Cubs, Astros, Red Sox and Twins are among the clubs who might benefit from an additional lefty arm in their bullpen.