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NL East Notes: Montas, Blackburn, Manaea, Nola, Finnegan

By Mark Polishuk | May 25, 2025 at 8:29am CDT

Frankie Montas saw his first proper game action of the 2025 season on Saturday, when the right-hander tossed 37 pitches over 1 1/3 innings for high-A Brooklyn in the first game of a minor league rehab assignment. Montas signed a two-year, $34MM free agent deal with the Mets this past winter, but was immediately sidelined at the start of Spring Training by a significant lat strain. Saturday’s game officially started the 30-day clock on Montas’ rehab assignment, and he’ll naturally need to further build up his arm strength over multiple outings before he is ready to be activated from the 60-day injured list.

Paul Blackburn should beat Montas back to the active roster, as MLB.com’s Jeffrey Lutz writes that the plan is for Blackburn to make his seventh and final minor league rehab outing before joining the Mets at some point in June. Blackburn has missed the entire big league season due to right knee inflammation, while Sean Manaea has also yet to pitch due to an oblique strain. Manaea is throwing off a mound, and Jon Heyman of the New York Post writes that Manaea’s projected timeline is about two weeks behind Montas. Despite all of these pitching injuries, even the makeshift version of the Mets’ rotation has posted tremendous results this season, giving the club a potential arms surplus to address if and when everyone is healthy.

Rangers To Promote Alejandro Osuna

By Nick Deeds | May 24, 2025 at 10:40pm CDT

The Rangers are poised to select the contract of outfielder Alejandro Osuna, according to a report from Daniel Alvarez-Montes of El Extrabase. The news comes after DH Joc Pederson suffered a fractured right hand during today’s game against the White Sox that is expected to leave him sidelined for the next six weeks. Osuna is not yet on the 40-man roster, and the Rangers will need to make a corresponding move to clear 40-man roster space.

Osuna, 22, signed with the Rangers out of Mexico back in 2021. The youngster has gradually climbed through the minor leagues while splitting time fairly evenly between all three outfield spots and boasts a solid .277/.370/.436 slash line in 373 career games across all levels of the minors. Osuna got his first taste of the upper minors last last year following a call-up to Double-A over the summer, and he responded by slashing an excellent .306/.379/.523 in 57 games. The Rangers decided to be cautious with Osuna and keep him at Double-A to start the 2025 campaign after Evan Carter failed to make the Opening Day roster and was optioned to Triple-A.

The outfielder’s numbers weren’t quite as impressive in his repeat of Double-A, as he hit just .283/.363/.409 in 31 games, but that was still enough to convince the Rangers to promote him to the highest level of the minors earlier this month. He has just seven games under his belt with the club’s affiliate in Round Rock, but he’s impressed in that limited time with a .485 on-base percentage and more walks (eight) than strikeouts (seven). Between Osuna’s hot start to his time at Triple-A and the injury to Pederson, it seems as though the Rangers have decided now is the time to call the youngster up and see what he can do in the majors.

Currently ranked as Texas’s #7 prospect according to MLB.com, scouts view Osuna as a player with a real chance to stick in center field who faces questions about his ability to hit lefties, though he made strides on that front last year, and his power potential despite solid bat-to-ball skills and improving exit velocities. He posted brilliant numbers in big league camp with the Rangers this spring and draws comparison to Alex Verdugo for his approach at the plate. Longer term, he’ll likely need to either stay viable in center or tap into more power in order to be a big league regular, but that doesn’t mean he can’t provide a spark for the Rangers while Pederson is out of commission.

Providing a spark is exactly what the 22-year-old will be tasked with doing for a beleaguered team that fell to 25-28 today, leaving them in fourth place in the AL West and three games out of an AL Wild Card spot. It’s unclear whether the lefty-hitting Osuna is expected to play DH or perhaps help fill in for Carter in center field, where Sam Haggerty has been tasked with playing every day recently. Perhaps he could even be tasked with spelling Wyatt Langford and Adolis Garcia in the outfield corners. Wherever he ends up playing, it seems fair to expect that Kyle Higashioka will continue to get occasional reps at DH against left-handed pitchers, with Osuna likely to sit on the bench on those days.

Royals Outright Luke Maile

By Darragh McDonald | May 24, 2025 at 9:17pm CDT

May 24: The Royals announced this afternoon that Maile has cleared outright waivers and accepted an assignment to Triple-A. The 34-year-old will remain in the organization going forward to serve as non-roster catching depth behind the club’s tandem of Perez and Fermin.

May 19: The Royals announced that right-hander Taylor Clarke has been reinstated from the paternity list. Catcher Luke Maile has been designated for assignment as the corresponding move. The club’s 40-man roster count drops from 39 to 38.

Maile, 34, signed a minor league deal with the Royals in the offseason and was selected to the big league roster on May 2nd. The Royals already had two catchers on the roster in Salvador Perez and Freddy Fermin but Perez was dealing with some hip tightness at the time. Perez didn’t start on May 2nd or 3rd but was back in the starting nine by May 4th.

That didn’t leave a lot of playing time for Maile. Though he was on the roster for almost three weeks, he only got ten plate appearances over three games. He certainly made the most of those, with two walks and three hits, including a home run, creating a gargantuan .375/.500/.750 slash line.

His career offensive output is far more modest. He has a .209/.276/.322 batting line over 1,260 big league plate appearances. His 63 wRC+ indicates he’s been 37% worse than average overall. However, despite that lack of punch at the plate, he’s been in and out of the big leagues for most than a decade. That’s thanks to his solid reputation for his defense and work with a pitching staff.

He has been squeezed off the Royals’ roster and into DFA limbo. He will likely end up on waivers in the coming days. It’s possible he could attract interest from clubs looking for veteran catching depth.

Photo courtesy of Gregory Fisher, Imagn Images

Joc Pederson Suffers Right Hand Fracture

By Nick Deeds | May 24, 2025 at 6:36pm CDT

The Rangers were dealt a major injury blow today when DH Joc Pederson was hit by a pitch in this evening’s loss to the White Sox. Pederson initially stayed in the game but was later lifted for a pinch-hitter. Manager Bruce Bochy revealed to reporters (including Shawn McFarland of the Dallas Morning News) that Pederson suffered a fracture in his right hand when he was struck by the pitch. Pederson told reporters, including McFarland, that he expects a recovery timeline of six weeks for the injury.

It’s a blow to a Rangers club that has already struggled to stay healthy this year. Pederson will now join Corey Seager and Evan Carter on the shelf from the club’s lineup, in addition to injuries suffered by reliever Chris Martin and starters Kumar Rocker, Jon Gray, and Cody Bradford. Those injuries have contributed to Texas’s struggles this year, as they’ve posted a lackluster 25-28 record that’s left them three games out of a Wild Card spot and five games out of the AL West. With Josh Smith covering for Seager at shortstop and Sam Haggerty holding down center field in place of Carter, the Rangers will likely be forced to get creative with replacing Pederson.

One option could be first baseman Blaine Crim, who failed to record a hit in a five-game cup of coffee earlier this year but sports a .301/.369/.558 slash line in Triple-A this year. Another could be outfielder Dustin Harris, who has a 104 wRC+ in 45 trips to the plate at the big league level and is the club’s only left-handed hitter already on the 40-man roster at Triple-A. Harris could be a particularly attractive option if the Rangers would like to continuing starting backup catcher Kyle Higashioka at DH against left-handed pitchers, a role which the club is already carrying third catcher Tucker Barnhart in order to accommodate on a more regular basis.

Turning back to Pederson, it must be acknowledged that for however much losing his offensive prowess from the lineup may sting on paper he hasn’t delivered much production in his first season with the organization. Signed to a two-year, $37MM guarantee over the winter, Pederson has hit a paltry .132/.266/.240 (51 wRC+) in 144 plate appearances to this point in the season. That’s hardly production a club will miss from their lineup, but it’s unfortunate timing nonetheless giving that Pederson had just begun to look more like his normal self at the plate: he’s hitting .220/.429/.444 with four extra-base hits and an eye-popping 26.5% walk rate over his last 16 games.

The Rangers can only hope that he’ll be able to pick back up right where he left off when he returns to action later this summer. A six week timetable would leave him poised to return in early July, shortly before the All-Star break. Rough as his start to the 2025 campaign was, it goes without saying that Pederson can be a dynamic addition to virtually any lineup when healthy; while he almost exclusively plays against right-handed pitching, the slugger slashed an excellent .262/.365/.485 with a wRC+ of 135 and 61 homers in 387 games over his last three seasons. That’s the 16th-best wRC+ among all hitters with at least 1000 plate appearances in that span, sandwiched between Vladimir Guerrero Jr. and Jose Ramirez on the leaderboard. If Pederson can offer that sort of production to the Rangers in the second half, it should be easy for fans to forget his first-half struggles and injury woes so long as Texas hasn’t already fallen out of the playoff conversation before he returns.

Marlins Select Janson Junk

By Nick Deeds | May 24, 2025 at 5:56pm CDT

The Marlins are selecting the contract of right-hander Janson Junk, according to a team announcement. Right-hander Lake Bachar was optioned to Triple-A to make room for Junk on the active roster, while a 40-man roster spot was opened up by transferring catcher Rob Brantly to the 60-day injured list.

Junk, 29, was a 22nd-round pick by the Yankees back in 2019 who made his big league debut with the Angels back in 2021. Once a fairly well-regarded pitching prospect, Junk pitched to a 4.74 ERA and a 5.22 FIP in 24 2/3 innings spread across seven appearances (six starts) in the majors during the 2021 and ’22 seasons. Following the 2022 campaign, the Angels traded Junk to Milwaukee as part of the package for outfielder Hunter Renfroe. Junk didn’t get much of an opportunity in the majors with the Brewers either, however, pitching just 15 1/3 innings for the club with a 5.87 ERA and 5.22 FIP between the 2023 and ’24 seasons.

Those struggles in Milwaukee culminated in Junk eventually being bounced around the majors in the second half of last year. Junk was designated for assignment by the Brewers in late July and was claimed briefly by the Astros before being DFA’d once again and finding himself in Oakland. Junk appeared in just one game for the club but surrendered seven runs without recording an out and was eventually outrighted off the club’s 40-man roster in September of last year. He then reached minor league free agency during the offseason and signed a minors pact with the Marlins back in February.

Junk’s time with the Marlins organization has seen him pitch extremely well at Triple-A Jacksonville. In nine appearances (eight starts) for Miami’s affiliate, he’s pitched to a 2.48 ERA with a 22.5% strikeout rate in 45 1/3 innings of work. For a pitcher with a 4.03 career ERA across five seasons at the Triple-A level, it’s a noticeable step forward, and those impressive minor league numbers were clearly enough to get the attention of a Marlins club that’s always looking for extra arms who can pitch in flexible roles. He’ll join the Miami bullpen for the time being, where there should be opportunities for advancement into a late-inning role if he performs well given the club’s lackluster 5.09 bullpen ERA.

As for Bachar, the soon-to-be 30-year-old hurler is in his second season with the big league Marlins. He’s posted a 4.50 ERA in 36 innings of work as an up-and-down reliever for the club to this point, and while that league average (101 ERA+) production is hardly exciting, it’s the sort of effectiveness that should keep him in the conversation for appearances with the rebuilding Marlins going forward. Brantly, meanwhile, heads to the 60-day IL after sustaining a lat strain in April. That’ll keep him out of commission for at least another month, though a trio of Liam Hicks, Agustin Ramirez, and Nick Fortes seem perfectly capable of holding down the fort while Brantly is on the shelf.

Angels Promote Caden Dana

By Nick Deeds | May 24, 2025 at 5:53pm CDT

The Angels announced this evening that they have designated right-hander Shaun Anderson for assignment. Anderson’s departure would make room for right-hander Caden Dana, who Sam Blum of The Athletic notes is poised to join the club’s bullpen.

Anderson, 30, was a third-round pick by the Red Sox all the way back in 2016 who made his big league debut with the Giants in 2019. He’s pitched parts of six seasons in the majors but has never had much success in doing so. Across 162 innings of work between the Giants, Twins, Orioles, Padres, Blue Jays, Rangers, Marlins, and Angels, the righty has a career 6.11 ERA in the big leagues with a 16.8% strikeout rate and an 8.7% walk rate. He’s also had troubles with the long ball over the years, with 13.5% of his fly balls leaving the yard throughout his career.

It’s a rough profile, though a solid 2023 season in the KBO league where he pitched to a 3.76 ERA across 14 starts for the Kia Tigers offers at least some level of optimism about his ability to get outs at a higher professional level. He also has a 3.86 ERA in 349 1/3 career innings at Triple-A, suggesting he can at least be viable minor league depth for a pitching-needy club. The Angels will have one week to either work out a trade involving Anderson or attempt to pass him through waivers, at which point he would have the option to either accept an outright assignment or test free agency.

As for Dana, the 21-year-old has not yet done much at the big league level across parts of two seasons. He’s posted an 8.78 ERA in 13 1/3 big league innings so far, spread between three starts last year and one multi-inning relief outing earlier this season. Despite those lackluster performances in his brief time in the majors so far, Dana is a consensus top-100 prospect who dominated Double-A pitching last year with a 2.52 ERA across 23 starts (135 2/3 innings of work) with a 27.4% strikeout rate.

It was an extremely impressive showing, though Dana hasn’t been able to keep it up at Triple-A this year. In 38 innings of work across eight starts, he’s posted a 5.21 ERA despite a solid 24.6% strikeout rate. Much of that is surely due to the inflated offensive environment of the Pacific Coast League, however, and perhaps getting Dana into a more pitching-friendly environment is why the Angels have decided to work to continue the right-hander’s development at the big league level. It certainly wouldn’t be the first time a top pitching prospect broke into the majors first as a reliever, with Chris Sale’s early years with the White Sox standing out as perhaps the most noteworthy example.

The competitiveness of the big league club may also be a factor in the club’s aggressive promotion of Dana. After all, the club entered the weekend with an eight-game winning streak that had brought them back up to a .500 record, which puts them just 1.5 games out of playoff position in a weak AL Wild Card field. After a playoff drought that has lasted nearly all of Mike Trout’s career, it makes plenty of sense for the Angels to be aggressive in trying to capitalize on that opportunity. That aggressiveness could include pushing Dana to finish his development in the big league bullpen rather than the Triple-A rotation, where he can get reps against big leaguers in a less hostile environment to pitchers while avoiding the need to build up to a full starter’s workload or pitch a third time through the order.

Orioles Select Yaramil Hiraldo

By Nick Deeds | May 24, 2025 at 5:25pm CDT

The Orioles have selected the contract of right-hander Yaramil Hiraldo, according to a team announcement. Southpaw Cionel Perez was designated for assignment to make room on the active and 40-man rosters.

Hiraldo, 29, signed with the Diamondbacks out of the Dominican Republic all the way back in 2018 but departed affiliated ball following a 2021 season where he struggled to a 4.13 ERA in 24 innings of work at the High-A level. He caught on with the independent Atlantic League, where he scuffled a bit in his first year outside of the minor leagues but bounced back to deliver an impressive 1.50 ERA in 18 innings of work. After once again impressing in 2024 (this time as a member of the Mexican League’s Caliente de Durango), he caught on with the Orioles this year on a minor league deal.

The right-hander has just 18 1/3 innings of work under his belt in the minors since returning to affiliated ball, but he’s dominated at every level the Orioles have put him through with a 2.43 ERA and 26.0% strikeout rate overall. Evidently, the Orioles feel he’s ready for the test of major league action, and the 29-year-old’s big league debut could come as soon as today’s game against the Red Sox. Now that he’s on the 40-man roster, Hiraldo will be an optionable bullpen piece available to Baltimore, a particularly valuable commodity given that closer Felix Bautista, top setup man Yennier Cano, and top lefty Keegan Akin are the only three pitchers besides Hiraldo will options remaining in the bullpen as things stand.

It’s been a tough year for Orioles pitching to say the least, given their MLB-worst team ERA of 5.77. The bullpen is less of a culprit in those struggles than the rotation, but their 5.67 ERA and 4.82 FIP still make them a bottom-four bullpen overall in baseball this year. Turning things around in the bullpen will primarily rely on pieces like Bautista and Cano getting right, but a dominant performance from Hiraldo in his first opportunities at the big leage level might be enough to convince the Orioles to keep him around over a struggling arm like Seranthony Dominguez, even though the latter is out of options. At the very least, a strong showing from Hiraldo in this first call-up to the majors should bode well for his ability to earn opportunities after a trade deadline where the Orioles look increasingly likely to be sellers in at least some capacity.

As for Perez, the 29-year-old has spent each of the past four seasons in Baltimore after previously pitching for the Astros and Reds over the years. Perez’s time in Baltimore has been generally successful, with a 3.72 ERA and 3.58 FIP across 212 appearances, though it must be noted that most of that success came in the 2022 and ’23 seasons. Last year was a down season for Perez, as he posted an ugly 4.53 ERA that clocked in 16% below average by ERA+ despite solid peripheral numbers. Those peripherals gave him a 3.30 FIP that suggested positive regression could be on the way, but Perez has not experienced that in 21 2/3 innings of work for the Orioles this year. Instead, he’s been torched to the tune of a 8.31 ERA with a 5.71 FIP that, while better, offers little optimism for above-average results going forward. Those deep struggles were evidently enough for Baltimore to pull the plug on the lefty, who they’ll now have one week to either work out a trade or attempt to pass through waivers.

Red Sox Designate Sean Newcomb For Assignment

By Nick Deeds | May 24, 2025 at 5:17pm CDT

The Red Sox announced this afternoon that they’ve designated left-hander Sean Newcomb for assignment. The move makes room on the active roster for right-hander Luis Guerrero to be recalled from Triple-A.

Newcomb, 32 next month, is a former first-round pick who was selected 15th overall by the Angels back in 2014. He was swapped to Atlanta in the Andrelton Simmons trade prior to his MLB debut and spent parts of six seasons with the Braves from 2017 to 2022. During that time, he pitched to a league average 4.25 ERA in 144 appearances (57 starts) with a near-matching 4.27 FIP. That overall number doesn’t tell the full story, however, as Newcomb was actually an above-average pitcher (110 ERA+) over his first three years in the majors. Things took a turn for the worse after that, however, and by the end of the 2022 season he had been cut by the Braves and had a 7.45 ERA with a 5.57 FIP over his 73 2/3 innings of work in the majors from 2020 to 2022. He spent the following two seasons in Oakland with a roughly average 4.32 ERA despite shoddy peripherals that were more or less in line with his numbers during his previous struggles.

Newcomb’s future was filled with uncertainty entering Spring Training this winter. He had signed a minor league deal with the Red Sox over the winter, but the club had a loaded pitching staff and Newcomb hadn’t exactly shown much at the big league level in recent years. Fortunately for the soon to be 32-year-old, the Red Sox suffered a number of injuries throughout the spring. That, in conjunction with an impressive Spring Training, was enough to get Newcomb an opportunity to break camp not just with Boston, but as a member of the starting rotation while players like Lucas Giolito, Kutter Crawford, and Brayan Bello began the season on the IL.

Newcomb’s five starts with Boston over the season’s first month were something of a mixed bag. The southpaw completed the fifth inning just once in those outings and surrendered a 4.43 ERA overall, but his peripherals looked quite strong as he struck out 25.7% of his opponents while walking 10.5%. He got bumped from the club’s rotation as other pitchers started to get healthy, but remained on the roster as a long relief option and excelled in that role as well, with a 3.06 ERA and 3.81 FIP in 17 2/3 innings of work across six relief outings.

In all, the lefty finishes his time with the Red Sox with a 3.83 ERA and 3.28 FIP across 40 innings of work. It’s a solid track record, and it would hardly be a surprise to see a pitching-needy club scoop the southpaw up either via trade or the waiver wire in the coming days given his previous pedigree and more recent success in the majors this year. The Red Sox will have one week to either trade Newcomb or attempt to pass him through waivers. Should he clear waivers, they could attempt to outright him to the minors as non-roster depth but he would have the opportunity to reject that assignment.

As for Guerrero, the right-hander has yet to give up an earned run in 14 innings of work at the major league level across the past two seasons. He’s rode the shuttle between Triple-A and the majors frequently for the Red Sox in recent years due to the fact that he has options remaining, but has yet to get an extended audition at the big league level. It’s possible his opportunity is now, although it must be noted that the Red Sox have a number of hurlers on the injured list whose activation will eventually require someone to be sent down to the minors or otherwise removed from the roster.

White Sox Release Oscar Colas

By Nick Deeds | May 24, 2025 at 4:54pm CDT

The White Sox have released outfielder Oscar Colas, according to an announcement from the club’s Triple-A affiliate Charlotte Knights. Colas was previously outrighted off the club’s 40-man roster back in March, so the move has no impact on Chicago’s major league roster.

It’s an unfortunate end to Colas’s time in the organization. The 26-year-old was a fairly high-profile player in Cuba and Japan before he came over to affiliated ball by signing with Chicago for a $2.7MM bonus in early 2022. He crushed minor league pitching that year and put himself on the map as a consensus top-100 prospect in the sport headed into the 2023 season. He broke camp with the team after a strong spring training, but ultimately struggled badly across 75 games with the White Sox that year. He hit just .216/.257/.314 in 263 trips to the plate, with an elevated 27.0% strikeout rate against a lackluster 4.6% walk rate.

Those numbers weren’t enough for the White Sox to continue riding with Colas even amid a disastrous 101-loss season, and he was shipped back to the minors. Once back in Triple-A, Colas regained his hitting prowess somewhat and slashed .272/.345/.465 with the Knights in 54 games down the stretch. As the White Sox dove headfirst into a rebuilding phase in 2024, many expected that Colas would receive another opportunity to come up and try to establish himself in the majors with the club. That never came to pass, however, as reps in right field were instead primarily split between Dominic Fletcher, Gavin Sheets, and Tommy Pham.

Relegated to Triple-A for almost the entirety of 2024, Colas hit .273/.368/.273 with a 26.3% strikeout rate and a 10.5% walk rate in the 13 games he did play in the majors last year but recorded no extra-base hits in the majors and saw his performance in the minors take a noticeable step back as he slashed just .246/.332/.400 across 400 trips to the plate. Colas did not factor into the club’s plans for the outfield this year either, as team brass added players like Mike Tauchman and Austin Slater to the mix rather than give Colas another opportunity. This year, he posted a brutal .163/.245/.255 slash line across the Double- and Triple-A levels in 29 games (110 plate appearances) before the White Sox decided it was time to pull the plug.

Now that the White Sox and Colas have parted ways, the outfielder is free to sign with any of the league’s 29 other teams. The outfielder won’t turn 27 until September and is not terribly far removed from sensational numbers in the upper minors, so it wouldn’t be a shock if an outfield needy club gave him a call to serve as a depth option or injury replacement. Another possible option would be to explore the possibility of playing overseas, building on his stint with NPB’s Fukuoka Softbank Hawks during the 2019 season. If Colas is unable to find an attractive stateside opportunity, he’s certainly young enough to find success overseas before attempting to make an MLB comeback as a handful of other players have done over the years.

Red Sox Promote Marcelo Mayer; Alex Bregman To IL With “Significant” Quad Strain

By Anthony Franco | May 24, 2025 at 4:27pm CDT

4:27pm: The Red Sox have officially announced the selection of Mayer’s contract. Bregman was placed on the 10-day injured list with a right quad strain to create room for Mayer on the active roster, while Casas was placed on the 60-day injured list to create a 40-man roster spot. Cora told reporters (including Jen McCaffrey of The Athletic) this afternoon that Bregman’s injury is “significant” and compared it to a quad strain Bregman suffered in 2021 that ultimately caused him to miss around two months.

1:39pm: The Red Sox are promoting top infield prospect Marcelo Mayer, reports ESPN’s Jeff Passan. Katie Morrison-O’Day of MassLive observed that Mayer was being congratulated by his teammates in the clubhouse at Triple-A Worcester. Her MassLive colleague Christopher Smith first reported that the former first-round pick is headed to Fenway Park.

The promotion comes as Alex Bregman navigates a right quad injury that seems likely to send him to the 10-day injured list. Bregman came out of yesterday’s blowout win over the Orioles in the fifth inning. He came up a bit gimpy after making an aggressive turn around the first base bag on a single off the Green Monster. He immediately exited in favor of Abraham Toro. The team is still awaiting MRI results from this morning. Manager Alex Cora told reporters (including WEEI’s Rob Bradford) that the star third baseman woke up with more soreness than he’d expected today.

Boston did not place Bregman on the IL before the first game of today’s doubleheader. There’s a good chance that’ll come between games tonight. They’ll also need to clear a spot on the 40-man roster for Mayer, but that can easily be achieved by transferring Triston Casas to the 60-day injured list.

Cora has already shot down the idea that Rafael Devers could see any third base time in Bregman’s absence. He’ll remain a full-time designated hitter. That means the 22-year-old Mayer should be in the lineup on a near everyday basis at third base. He obviously can’t be expected to replace the production they’re losing with Bregman’s absence. The two-time All-Star takes a .299/.385/.553 batting line to his likely stint on the injured list.

Mayer has very little experience at the hot corner. He started one game there in Double-A in each of the 2023 and ’24 seasons. He’s added four appearances in Triple-A this year. Mayer has taken the vast majority of his professional reps as a shortstop. He’d moved more frequently to second base over the past few days. That wasn’t because of any question about whether he can hold up at shortstop. It was instead in preparation for what seemed to be his best path to an MLB debut — playing second base with Kristian Campbell preparing to slide to first base after the Casas injury.

While there may be some growing pains given Mayer’s lack of experience at the hot corner, it’s common for shortstops to move to other infield positions. He has the plus arm for the position and is generally regarded as a sure-handed infielder. At 6’3″, Mayer is on the bigger side for a shortstop. His range, while adequate, has never been the strongest point of his defensive profile. That’s less of a concern at third base.

Mayer certainly brings a higher offensive ceiling than the utility options (Toro and David Hamilton) who may otherwise have replaced Bregman. The fourth overall pick in 2021, Mayer has been a feature on top prospect lists throughout his professional career. The left-handed hitter has moved a little more slowly than anticipated, largely because of injuries to his left shoulder and right wrist that affected him in 2022-23. Scouts have remained enamored with his power, polished strike zone discipline and overall natural athleticism.

That has been on display over the past two minor league seasons. Mayer hit .307/.370/.480 in Double-A a year ago. He’s out to a solid .271/.347/.471 slash with nine homers in 43 games during his first Triple-A action. He’s drawing walks at a strong 10.4% clip compared to a 19.7% strikeout rate that matches last year’s mark for the lowest of his career.

While the Bregman injury is the immediate impetus for Mayer’s promotion, there should be opportunity to stick past Bregman’s return if he performs well. The Sox may feel comfortable using Campbell at first base by that point, potentially opening second base. Mayer could also eventually supplant Trevor Story as the starting shortstop. Story began the season with a power barrage but has done almost nothing offensively for the better part of six weeks. He’s hitting .159 with one home run and 38 strikeouts in 122 plate appearances since his two-homer game on April 18.

Mayer will not reach a full year of service time unless he triggers the Prospect Promotion Inventive by finishing in the top two in Rookie of the Year voting. The Sox would not receive an extra draft choice under the PPI because they did not carry Mayer on the big league roster for at least 172 days. He would be on track to qualify for early arbitration as a Super Two player during the 2027-28 offseason if he’s in big leagues for good, though future optional assignments could certainly change that timeline.

Photo courtesy of Imagn Images.

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