• Leonys Martin is now a free agent, as he elected to hit the open market after being outrighted off the Cubs’ roster last week.  The veteran outfielder is looking to rebound from a rough 2017 that saw him post just a .513 OPS over 138 PA with the Cubs and Mariners, though Martin was still an above-average defender in the outfield.
• The Royals re-signed right-hander Seth Maness to a new minor league deal.  Maness elected to become a free agent last month after K.C. outrighted him off its 40-man roster.  A workhorse out of the Cardinals’ bullpen in his first three seasons, Maness has been limited to just 41 1/3 IP over the last two seasons thanks to a torn UCL, though he opted for an innovative “primary repair” procedure that allowed him a much quicker return to action than the usual 12-15 month timeline for Tommy John surgery.
• Catcher Tim Federowicz chose to become a free agent after being outrighted off the Giants’ 40-man roster.  Federowicz hasn’t hit much (a .558 OPS) over 318 career MLB plate appearances, though he has a very impressive .304/.374/.503 slash line over 1654 PA at the Triple-A level.
• The Braves released right-hander Armando Rivero.  Atlanta chose Rivero in last year’s Rule 5 Draft but Rivero missed the entire season due to shoulder problems.  The Braves outrighted Rivero off their 40-man roster last month, so the Cubs officially declined the opportunity to take the righty back.  Rivero has a 2.70 ERA, 12.4 K/9 and 2.83 K/BB rate over 220 career innings in the minors, all as a reliever in Chicago’s system.
• Catcher Erik Kratz elected to become a free agent rather than accept an outright assignment to Triple-A, the Yankees announced earlier this week (via Twitter).  Kratz spent much of 2017 at Cleveland’s Triple-A affiliate before being acquired by New York on August 31 to add some catching depth to the expanded September rosters.  Kratz only appeared in four games as a Yankee, but it officially made him a veteran of six different teams over parts of eight MLB seasons.  The 37-year-old has a .203/.250/.366 slash line over 649 career plate appearances in the bigs.

Krol posted a strong 3.18 ERA over 51 relief innings for the Braves in 2016, with an 0.7 HR/9 rate that seemed to indicate he had corrected his past issues in keeping the ball in the park.  This wasn’t the case in 2017, however, as Krol’s HR/9 jumped to 1.5 and his ERA (5.33) reflected that increase.  The southpaw also posted an 8.1 K/9 and 2.1 K/BB rate over 49 innings.

MLBTR contributor Matt Swartz projected Krol to earn $1.3MM in his second winter of arbitration eligibility.  (Krol and the Braves avoided arbitration last winter by agreeing to a $900K deal.)  Krol agreed to the minor league assignment rather than opting for free agency, which could indicate some type of deal between he and the club to continue their relationship past the non-tender deadline.  Atlanta could still non-tender Krol but then re-sign him to a minor league deal worth less than that $1.3MM figure.

The Braves selected Rivero out of the Cubs organization in last December’s Rule 5 draft, and Rivero ended up spending the entire season on the DL due to shoulder problems.  In clearing outright waivers, the Cubs would have had to pass on taking Rivero back, so the Cuban right-hander is now officially under the Braves’ control.

Rivero originally signed with the Cubs for a $3.1MM bonus in March 2013 and posted some eye-popping strikeout numbers in Chicago’s minor league system.  Rivero posted a 12.4 K/9 over 220 career relief innings in the minors, with a 2.70 ERA and 4.4 BB/9.  Those walk totals crept upwards in 2015-16 when Rivero was pitching at Triple-A, so between that decrease in control and the Cubs’ loaded roster, Rivero was available last winter for the Braves to grab in the Rule 5 draft.

Keepers

It isn’t official yet, but these

• Miguel Diaz, RHP, kept by Padres (via Twins) from Brewers: As part of the Pads’ unusually bold Rule 5 strategy, the club kept three youngsters this year. Diaz, 22, has managed only a 6.21 ERA with a 31:22 K/BB ratio over 37 2/3 innings. But he is showing a 96 mph heater and will remain with the organization, quite likely heading back to the minors next season to continue his development.
• Luis Torrens, C, kept by Padres (via Reds) from Yankees: The youthful backstop — he’s just 21 — has struggled badly on offense in limited action. Through 133 plate appearances, he’s slashing just.169/.246/.212 — with just four extra-base hits, none of them home runs.
• Allen Cordoba, INF, kept by Padres from Cardinals: And then there’s Cordoba, who’s also just 21 years of age. He faded after a hot start at the plate, but on the whole his output — a .209/.284/.304 batting line and four home runs over 215 plate appearances — is fairly impressive given that he had never before played above Rookie ball.
• Dylan Covey, RHP, kept by White Sox from Athletics: Technically, owing to a DL stint, Covey has only compiled 83 of the minimum 90 days of active roster time required to be kept. But he’s going to make it there before the season is up, meaning that the Sox will be able to hold onto his rights and option him back to the minors in 2018. Covey, 26, has struggled to a 7.90 ERA with 4.9 K/9 against 4.4 BB/9 over 54 2/3 innings, allowing 18 long balls in that span.
• Stuart Turner, C, kept by Reds from Twins: Turner has seen minimal action, appearing in just 33 games and taking only 77 trips to the plate. And he’s hitting just .141/.184/.268 in that sporadic action. Clearly, though, the Reds have seen enough to believe he’s worth the trouble to hang onto.

Still In Limbo

• Kevin Gadea, RHP, selected by Rays from Mariners: Gadea has not pitched at any level this year owing to an elbow injury. He’ll remain with the Tampa Bay organization for the time being, but will still need to be carried on the 40-man roster over the offseason and then on the active roster for at least ninety days for his rights to permanently transfer.
• Armando Rivero, RHP, selected by Braves from Cubs: It’s the exact same situation for Rivero as for Gadea, though he has had shoulder problems.
• Josh Rutledge, INF, selected by Red Sox from Rockies: This was not your typical Rule 5 move. Boston snagged the veteran infielder after he signed a minors deal with Colorado. He ended up seeing minimal MLB time owing to injuries and his season ended recently with hip surgery. Rutledge is eligible for arbitration this fall and isn’t likely to be kept on the 40-man roster regardless.
• Anthony Santander, OF, selected by Orioles from Indians: Since he only made it off of the DL late in the summer, Santander can accrue only 45 days on the active roster. If Baltimore wants to keep him, then, it’ll need to put him on the Opening Day roster next year. Santander has seen minimal playing time thus far, recording two hits in twelve trips to the plate, though he put up impressive numbers on his rehab assignment.

Kept By Other Means

• Daniel Stumpf, LHP, signed with Tigers after electing free agency upon return to Royals: This is another unusual situation. As a previous Rule 5 returnee, Stumpf was eligible to elect free agency upon being returned to his original organization. That’s just what happened when Detroit sent him back to Kansas City; the southpaw then turned around and re-signed a MLB deal with the Tigers. He has ended up turning in a rather productive year, posting 32 1/3 innings of 2.78 ERA ball with 8.6 K/9 and 3.9 BB/9 at the major-league level and showing even more impressive numbers during his time at Triple-A.

Already Returned

• Tyler Jones, RHP, returned to Yankees by Diamondbacks: Jones has thrown rather well at Triple-A since going back to the New York organization, posting 10.7 K/9 against 2.8 BB/9 in 63 2/3 innings, though he has also allowed 4.38 earned per nine.
• Caleb Smith, LHP, returned to Yankees by Brewers: Smith ended up earning a 40-man roster spot and spending some time in the majors after showing quite well as a starter in the minors. But he has been knocked around in his 18 2/3 MLB frames on the year.
• Justin Haley, RHP, returned to Red Sox by Twins (via Angels): The 26-year-old didn’t stick with Minnesota, allowing a dozen earned runs in 18 innings before being returned to Boston. But he has thrown well since landing back at Triple-A Pawtucket, posting a 2.66 ERA with 7.2 K/9 and 1.4 BB/9 in 44 innings over seven starts.
• Tyler Webb, LHP, returned to Yankees by Pirates: Webb also gained a 40-man spot with the Yankees after showing some intriguing K/BB numbers at Triple-A. He was ultimately dealt to the Brewers.
• Aneury Tavarez, OF, returned to Red Sox by Orioles: Tavarez played his way back up to Triple-A upon his return to his former organization, but has hit just .244/.292/.400 in 145 plate appearances there.
• Glenn Sparkman, RHP, returned to Royals by Blue Jays: Sparkman was bombed in his one MLB appearance and has been limited to just 30 1/3 minor-league frames due to injury.
• Hoby Milner, LHP, returned to Phillies by Indians: Another player who has risen to the majors with the organization that originally let them leave via the Rule 5, Milner has turned in 24 1/3 frames of 1.85 ERA ball in Philadelphia. Of course, he has also managed just 15 strikeouts against ten walks in that span.
• Mike Hauschild, RHP, returned to Astros by Rangers: The 27-year-old righty struggled badly in his eight MLB frames. Upon returning to the rotation for Houston’s top affiliate, Hauschild has uncharacteristically struggled with free passes (5.3 per nine).

More pitcher-related injury updates:

• Mets right-hander Jacob deGrom took the mound Saturday for the first time since last September, when he underwent elbow surgery, and dazzled in two scoreless innings, reports Dan Martin of the New York Post. DeGrom’s average fastball velocity fell from 94.9 mph in 2015 to 93.4 mph last year, but it clocked in between 96 and 97 mph at times Saturday. “When I saw the 97, I looked at (pitching coach) Dan (Warthen) and said, ‘That’s a little special,’” said manager Terry Collins. Naturally, deGrom also came away encouraged. “Last year, it was all I had to get to 92 [mph],” deGrom noted. “It has to do with repeating my mechanics. Last year, I flew open all the time and my arm was dragging.”
• Unlike deGrom, Angels lefty Tyler Skaggs endured a rather poor spring debut Saturday, relays Pedro Moura of the Los Angeles Times (Twitter links). In his first outing since undergoing a major injury scare last September, the onetime Tommy John surgery recipient recorded only two outs against four walks. More alarmingly, Skaggs saw his fastball dip from 89 to 92 mph at the beginning of the inning to 86 to 88 mph by the end of it.
• Southpaw Chris Rusin is attempting to claim the last spot in the Rockies’ rotation this spring, but those efforts will go on hold for an “extended period,” writes Barry M. Bloom of MLB.com. Rusin hurt his right side in his outing Friday, causing him to leave the game, and will “be out for a while,” manager Bud Black said.
• Tigers righty reliever Adam Ravenelle departed the team’s game Saturday with elbow discomfort and will undergo an MRI, skipper Brad Ausmus announced (via Evan Woodbery of MLive.com). Ravenelle, a non-roster invitee whom Baseball America ranks as Detroit’s eighth-best prospect, underwent ulnar nerve surgery in his elbow in 2012, per Woodbery. More recently, the 24-year-old combined for 67 1/3 innings at three different levels last season. The plurality of his work came at Triple-A Toledo, where he put up a 4.85 ERA to go with 6.98 K/9 against 4.85 BB/9 in 29 2/3 frames.
• Braves Rule 5 pick Armando Rivero has been dealing with shoulder soreness, though manager Brian Snitker said Saturday that there’s no sign of structural damage, tweets Mark Bowman of MLB.com. Braves doctors cleared the righty, previously with the Cubs, to continue throwing and vying for a job with Atlanta. Rivero, 29, pitched to a 2.13 ERA and recorded a sky-high 13.97 K/9 against a bloated 4.66 BB/9 in 67 2/3 innings with the Cubs’ Triple-A affiliate in 2016.

More from the NL East…

• Asked about his first season in a Marlins uniform, left-hander Wei-Yin Chen bluntly told Clark Spencer of the Miami Herald that his performance “was terrible.” The 31-year-old, who signed a five-year, $80MM contract with the Marlins last winter, posted a 4.96 ERA across 123 1/3 innings in an injury-shortened campaign. Chen admitted to pitching through elbow discomfort that would act up without warning and also revealed that at times he felt “a lack of strength” in his fingers and arm. Manager Don Mattingly told Spencer that the Marlins believe Chen’s elbow has healed, but he also suggested that the Marlins may be more willing to have turn to the bullpen should they sense that Chen needs a reprieve on any given day. “That is one of the things we have a better idea of, how to keep an eye on him and be ready to pull that trigger a little quicker,” said Mattingly.
• Generally speaking, the Marlins could be quick to turn to their deep bullpen if the starters are struggling, writes MLB.com’s Joe Frisaro. Per Frisaro, the Marlins are planning to take a long look at how their starters are faring when facing the opposing lineup for the third time on a given day. Statistically speaking, starters tend to fare considerably worse as they turn a lineup over multiple times, due both to growing levels of fatigue and hitters’ increasing familiarity with their offerings. Miami’s starters appear open to the additional input they could receive from the team’s analytics department on the matter, as both Dan Straily and Tom Koehler spoke to Frisaro about how that type of data could potentially help to create an edge for pitchers. “I think that’s the way baseball is going with the analytics, with the data behind everything,” said Straily. Koehler added to that: “If there is something happening a third time, there’s a reason for it. So there’s probably a solution to it, too. … I think maybe if we dig deeper into it, we can find a solution.”
• MLB.com’s Mark Bowman tweets that Braves Rule 5 pick Armando Rivero is currently dealing with shoulder soreness that stems from his stint in the Venezuelan Winter League this offseason. Selected out of the Cubs organization, the 29-year-old Rivero pitched to an exceptional 2.13 earned run average in 67 2/3 innings with Chicago’s Triple-A affiliate last season. Along the way, the Cuban-born righty averaged a whopping 14 strikeouts per nine innings pitched, though he also averaged 4.7 walks per nine in that time.

Rivero, 25, had been living and training in the Dominican Republic, Badler writes. He stands 6’3” and has the potential to pitch as a middle reliever at the MLB level. His best pitch is a fastball that can reach 96 mph, but he doesn’t have an above average secondary pitch, according to Badler. Rivero can throw a solid splitter and sometimes pitches from a low arm slot. His bonus won’t count against the Cubs’ 2012-13 international bonus pool.

19-year-old outfielder Jorge Soler and 23-year-old right-hander Armando Rivero participated in a showcase at the Yankees' complex in Boca Chica last week.  Like Cespedes, both players are in the process of becoming eligible to play in the United States.  

One year ago, Baseball America's John Manuel had this to say about Soler:  "Soler has a strapping 6-foot-3, 205-pound body and has five-tool potential.  Soler has bat speed and what one scout called 'explosive power' to go with above-average arm strength."  He's on the Yankees' radar, according to George A. King III of the New York Post.  Sanchez writes that Rivero "features a slider, split-finger fastball, sinker and changeup in his repertoire and reached 98 mph with his fastball in the showcase."  King says he's viewed as a reliever.

Sanchez notes that outfielders Henry Urrutia and Gerald Sanchez and lefty Omar Luis also participated in the showcase.