MLBTR Chat Transcript
Click here to read a transcript of Tuesday’s chat with MLBTR’s Steve Adams.
Posting Window For Hyeseong Kim Likely To Begin Next Week
It’s already widely known that the Korea Baseball Organization’s Kiwoom Heroes will post infielder Hyeseong Kim for major league teams this offseason. An exact timetable, however, hadn’t come into focus until today. Kim himself tells Jee-ho Yoo of South Korea’s Yonhap News Agency (X link) that he expects the posting to be formalized next week. He’s planning to travel to the United States early next week in advance of the process.
Kim, who’ll turn 26 in January, has long looked the part of an interesting entrant into the offseason free agent market. The former double-play partner of current big leaguer Ha-Seong Kim, he’s old enough and has enough experience in the KBO to be considered a “professional” under Major League Baseball’s international free agent parameters. That allows him to sign a major league deal of any length and for any amount (unlike, say, NPB star Roki Sasaki, who’ll be limited to a minor league deal with a bonus that falls within the guidelines of MLB’s hard-capped international amateur system).
The left-handed-hitting Kim has turned in four straight above-average seasons at the plate in the KBO, batting over .300 with an on-base percentage of at least .372 in each of those four seasons. He’s light on power but did connect on a career-high 11 home runs this past season, adding in 26 doubles and four triples. Hitting the ball over the fence has never been Kim’s calling card, however. He’s developed into a KBO star due to his outstanding bat-to-ball skills, plus speed and plus glovework. Over the past four seasons, he’s swiped 135 bases in 155 attempts (87.1% success rate) and lowered his strikeout rate each season, culminating in just a 10.9% strikeout rate in 2024.
Overall, Kim carries a .321/.381/.418 over the past four seasons, including a .326/.383/.458 batting line this past season. He’s regarded as a plus defensive second baseman who can handle shortstop and has ample experience at both positions. The Mariners have already been linked to Kim, and he ought to command a fair bit of interest from other teams once his free agency begins in earnest. The A’s, Royals, Pirates, Braves, Yankees and Brewers make varying levels of sense as speculative fits.
Once the Heroes formally post Kim, it will open a 45-day window during which he and his representatives at CAA Baseball can negotiate freely with all 30 major league teams. Any team that signs Kim will be paying not only the agreed-upon guarantee to the player himself, but a formal posting/release fee to the Heroes. That fee, which is in on top of the contract, is equal to 20% of the contract’s first $25MM, plus 17.5% of the next $25MM and 15% of any dollars thereafter. Additional earnings, such as performance bonuses/incentives or salaries on option years fall under that purview once they are unlocked or exercised.
Rangers Finalize 2025 Coaching Staff
The Rangers formally announced their coaching staff for the upcoming season today, including the additions of bench coach Luis Urueta, assistant pitching coach Dave Bush, bullpen coach Jordan Tiegs and hitting coach Justin Viele.
The 43-year-old Urueta served as the Marlins’ bench coach under Skip Schumaker and also held a bench coach position with the Diamondbacks prior to his time in Miami. The Rangers hired Schumaker as a senior advisor to president of baseball operations Chris Young earlier this month, and it was reported at the time that Urueta was expected to be named bench coach to manager Bruce Bochy. In addition to his time as a bench coach in Miami and Arizona, Urueta spent more than a decade coaching and managing in the D-backs’ minor league system.
Bush, 45, was the Red Sox’ pitching coach from 2020-23 and joined the Rangers as the organization’s director of pitching strategy back in January. He worked with both the coaching staff and front office in that role, and Bush even stepped in as interim pitching coach during the 2024 season when pitching coach Mike Maddux was briefly away from the club.
Tiegs, 37, will be suiting up on a big league coaching staff for the first time but has spent six years in the Rangers organization already. He’s been a pitching coach at multiple minor league levels and worked with the Rangers’ player development staff as the team’s minor league pitching coordinator. He’s also coached college ball at two different schools in his native Indiana (University of Indianapolis and Indiana State University).
Viele’s hiring was first reported back on Nov. 1. The 34-year-old had been an assistant hitting coach with the Giants and overlapped with current Rangers offensive coordinator Donnie Ecker on San Francisco’s staff in 2020-21.
Bochy will be returning to the Rangers for his third year as manager. In addition to Urueta, Bush, Viele and Tiegs, the Rangers will welcome back Ecker, first base coach Corey Ragsdale, third base coach Tony Beasley, catching coach Bobby Wilson, assistant hitting coach Seth Conner and quality control coach Brett Hayes.
Jake Cave Signs With KBO’s Doosan Bears
The Doosan Bears of the Korea Baseball Organization announced this week that they’ve signed outfielder/first baseman Jake Cave to a one-year, $1MM contract (hat tip to Dan Kurtz of MyKBO.net). Cave, a client of the Ballengee Group, will head overseas for the first time in his career and earn the maximum salary for a first-year foreign player in the KBO.
A veteran of seven big league seasons, Cave spent the 2024 season with the Rockies and hit .251/.290/.396 with seven home runs in 346 plate appearances. The Rockies passed Cave through waivers following the season, and he elected free agency once he went unclaimed.
Cave, 32 next month, has spent the bulk of his career with the Twins but was also with the Phillies in 2023 and the Rox this past season. Overall, he’s a lifetime .236/.292/.400 hitter in the majors (85 wRC+). Contact, or a lack thereof, has been a notable issue for him. Cave has fanned in 30.8% of his career plate appearances. He does have a knack for making decent contact when he puts the ball in play, with nearly 25% of his career batted balls being line drives. That’s several percentage points north of league-average, but his lack of contact offsets that penchant for solid contact.
Cave has logged more than 1000 big league innings at each of the three outfield spots. The Phillies also gave him 122 innings at first base in 2023. He spent a good bit of time in center field with Minnesota early in his career but has worked primarily in the corners in recent seasons, drawing solid grades for his glovework. Statcast credits him with above-average sprint speed and above-average arm strength in the outfield, ranking him in the 60th and 61st percentile of MLB players this past season, respectively.
As Jee-ho Yoo of South Korea’s Yonhap News Agency points out, Cave will round out the Bears’ international signings for the year. KBO clubs are permitted to carry three foreign players, and Doosan already signed pitchers Cole Irvin and Thomas Hatch earlier in the offseason.
Marlins To Hire Carson Vitale As Bench Coach
The Marlins are set to hire Carson Vitale away from the Mariners to serve as new manager Clayton McCullough’s bench coach, reports Daniel Kramer of MLB.com. Vitale has spent the past seven seasons with Seattle, including five as their major league field coordinator.
Vitale, 36, was Seattle’s minor league field coordinator before joining the big league staff in 2020. Prior to that, he was the Dodgers’ international field coordinator for two seasons (2016-17) and spent several years as a hitting coach and manager in the Angels’ minor league system. The Victoria, British Columbia native was drafted in the 38th round as a catcher out of Creighton University by the Rangers back in 2010 and played parts of two minor league seasons before setting a course down a coaching path.
Miami still has a ways to go in terms of filling out its coaching staff. The Marlins gutted their entire coaching staff after Skip Schumaker’s departure as manager, and McCullough’s hiring has only been official for two weeks. Miami has also reportedly hired former Giants assistant hitting coach Pedro Guerrero to serve as their new hitting coach, but he and Vitale are the only known hires to date. Both coaches have ties to Marlins assistant GM Gabe Kapler; Vitale worked with both Kapler and McCullough in Los Angeles, while Guerrero was on Kapler’s coaching staff in San Francisco and in Philadelphia when he managed the Giants and Phillies.
The Opener: SP Market, Coaching Staffs, MLBTR Chat
As the early days of the offseason continue, here are three things we’ll be keeping an eye on around the baseball world throughout the day today:
1. Is more movement on the starting pitching market on the way?
News broke of the winter’s first major signing yesterday when the Angels reportedly agreed to a three-year deal with veteran southpaw Yusei Kikuchi. Kikuchi, 33, ranked as the #12 free agent available on MLBTR’s annual Top 50 MLB free agents list. The southpaw sports a 3.96 ERA (105 ERA+) and 3.78 FIP over the past two seasons, placing him among the many mid-rotation arms in this winter’s class. It would hardly be a surprise if the Kikuchi deal represented the floodgates opening on significant signings. Last year, Aaron Nola re-signed with the Phillies to kick off the starting pitching market and fellow top-tier righty Sonny Gray followed by signing with the Cardinals just one week later.
One potential wrinkle with this year’s class, however, is the relatively small number of pitchers who are similar to Kikuchi in terms of overall effectiveness while remaining unencumbered by a qualifying offer. Nathan Eovaldi and Jack Flaherty are perhaps the closest comparisons overall, though Eovaldi’s age could limit his market while Flaherty’s youth and upside figures to expand his own. Hurlers like Sean Manaea, Nick Pivetta, and Luis Severino compare reasonably with Kikuchi but are attached to draft pick compensation, while Andrew Heaney and Matthew Boyd are unencumbered like Kikuchi but are generally considered to be in the tier below him.
2. Will more teams finalize their coaching staffs?
Yesterday saw the Orioles finalize their coaching staff for 2025, including the announcement of former big league catcher Robinson Chirinos as their new bench coach. The Red Sox finalized their staff late last week, accompanied by the announcement of José Flores as the club’s new first base coach. With December just over the horizon and the free agent market starting to heat up, will more clubs begin to announce finalized coaching staffs for next year in the coming days? Some clubs still appear to be finalizing their coaching hires, as the Mariners are reportedly poised to hire Kevin Seltzer as their next hitting coach while teams like the Brewers, Cubs, and Marlins still have positions that need to be filled.
3. MLBTR Chat today:
With the non-tender deadline in the rearview mirror and the winter’s first major free agent signing in the books, the 2024-25 offseason has begun to ramp up. Whether you have questions about who your favorite team will be targeting this winter, or a trade proposal in the back of your mind, MLBTR’s Steve Adams will be here to answer your questions during a live chat scheduled for noon CT. 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.
Mariners To Hire Kevin Seitzer As Hitting Coach
The Mariners plan to hire Kevin Seitzer as hitting coach, reports Daniel Kramer of MLB.com. Edgar Martinez, who finished last season in that capacity, will remain with the M’s in an overarching role. Kramer writes that Seitzer will report to Martinez, so it seems the franchise icon is still the team’s lead hitting voice. Martinez is not expected to regularly travel with the team on road trips, though he’ll be involved at Spring Training and during the majority of the club’s home games. Adam Jude of the Seattle Times tweets that Martinez’s official title will be senior director of hitting strategy.
Additionally, Kramer reports that the M’s are hiring Bobby Magallanes as assistant hitting coach. The 55-year-old spent the last four seasons working under Seitzer as an assistant hitting coach with the Braves.
Seitzer brings two decades of hitting coach experience to Dan Wilson’s staff. He’d worked in that capacity with the Diamondbacks, Royals and Blue Jays before being hired by the Braves during the 2014-15 offseason. Seitzer spent 10 seasons as Atlanta’s hitting coach. The Braves have been contenders for most of that stretch.
The development of Ronald Acuña Jr., Austin Riley, Ozzie Albies and Michael Harris II into star players has obviously been an instrumental part of the Braves’ success. Seitzer was fortunate to work with a lot of talented hitters, but he certainly deserves some amount of credit for overseeing a lineup that trails only the Dodgers in scoring over the last five seasons.
Still, the 2024 campaign was a mixed bag. The Braves’ offense floundered for a few months after Acuña’s season-ending knee injury. They finished the year 15th in scoring with a .243/.309/.415 team batting line. They were in the top 10 in slugging but right in the middle in both batting average and on-base percentage. That was below expectation for a team with as much star power as the Braves possess. Atlanta fired Seitzer, Magallanes, and catching coach Sal Fasano shortly after being eliminated from the playoffs.
It’s the latest shakeup to Seattle’s hitting infrastructure. The Mariners have struggled for years to field even a league average offense, which would probably be sufficient to get to the postseason given the strength of their starting pitching. The M’s hired Brant Brown as offensive coordinator last offseason. They fired him two months into the season in an effort to spark the lineup. That didn’t work, and the M’s dismissed hitting coach Jarret DeHart along with skipper Scott Servais three months later. Assistant hitting coach Tommy Joseph left the team at the end of the season to take the same position with the Orioles.
Martinez joined the staff when his longtime teammate Wilson signed on as manager. He had previously been reluctant to assume a full-time coaching position because of family considerations. It seems they’ve settled on an unconventional role that’ll allow Martinez to remain actively involved without spending much time away from Seattle.
White Sox Maintain High Asking Price On Luis Robert Jr.
Much of the focus on the White Sox’ trade efforts this offseason will center around Garrett Crochet, and with good reason — he’s the top starting pitcher who’s readily available on the market. However, heading into the 2024 campaign, it was Luis Robert Jr. who was seen as Chicago’s potential top prize at the deadline. Another slate of injuries ruined the talented but fragile center fielder’s ’24 campaign and further added to his reputation as an injury-prone player. The Sox are still hoping to move Robert, writes Bob Nightengale of USA Today, but one rival general manager tells Nightengale that Chicago’s asking price is simply unrealistic, given all of the health concerns surrounding Robert.
“You’ve got to hope he finally stays healthy and can be the player everyone envisioned all along,” that GM said. “But the White Sox are acting like he’s some big star center fielder and are asking for your top prospects.”
It’s understandable that the Sox would be reluctant to sell low on Robert. He’s among the most talented players in the sport when healthy — he just simply hasn’t been healthy for the majority of his career. Robert has had six IL placements dating back to the 2021 season, many of which sidelined him for significant periods of time. A hip flexor strain in 2021 sidelined him for more than three months. He missed more than two months this past season owing to the same injury. Robert has also been shelved for a wrist sprain, an MCL sprain, and a more ominous viral infection in 2022 that resulted in blurred vision, dizziness and lightheadedness.
That massive slate of injuries looked to have taken its toll on Robert this past season. He landed on the injured list just a week into the season and returned in June but never really found his footing. Robert hit five homers in his first 36 plate appearances upon activation — but he only collected one other hit in that time. He tallied 396 plate appearances post-injury in 2024 and slashed just .225/.281/.370 with a 32% strikeout rate.
Clearly, that’s not the type of production that’s going to generate interest in a player who’s owed a $15MM salary next season. However, from 2021-23, Robert slashed a combined .287/.331/.511 with 63 homers and 37 steals in just 1292 plate appearances. He played plus-plus defense in center field along the way; despite playing only 301 games in that three-year span, Robert tallied 21 Outs Above Average — good for 12th among all major league outfielders. That strong run was headlined by a 2023 campaign — Robert’s age-25 season — during which he hit .264/.315/.542 and popped 38 home runs in a career-high 595 trips to the plate. Robert made the All-Star team, won a Silver Slugger, and drew some downballot MVP votes.
That’s the type of upside any team would be hoping to land when acquiring Robert. Unfortunately, while his per-game and per-inning performance in 2021-23 was excellent, that 2023 season is the only one in which Robert has exceeded 425 plate appearances. He’s appeared in only 65.9% of possible games in his five-year run with the White Sox.
Robert’s 2024 season wasn’t without its silver linings. His average sprint speed, per Statcast, ticked up to 28.8 feet per second — the second-best mark of his career. He’d been down at a still-strong but not-elite 27.9 ft/sec the first time he dealt with a hip flexor strain. His speed bounced back more this time around. And while his defensive grades dipped, that was largely due to some errant throws. Statcast still rated Robert’s range quite strongly. He also sat in the 84th percentile of MLB hitters in bat speed and typically hit the ball hard (90.1 mph average exit velocity, 40.6% hard-hit rate) when he made contact. He just didn’t make contact enough (career-worst 32.8% strikeout rate).
Robert’s contract pays him $15MM next year. There are a pair of matching $20MM club options for the 2026 and 2027 seasons on the deal. Getting the 2021-23 version of Robert for the next three seasons at a combined $55MM would be a steal, even if he spent about one-third of that time on the injured list, as he did in ’21-’23. (Both Baseball-Reference and FanGraphs agree Robert was worth about 10.5 WAR during that run, even with the missed time.)
The problem for interested teams, of course, is that there’s no guarantee he’ll get back to that level of play. Taking a one-year, $15MM flier is probably appealing to many outfield-needy clubs, particularly with the pair of club options looming. Taking on that salary and surrendering top-tier prospects is another story entirely. From the White Sox’ vantage point, trading Robert to simply clear $15MM in guaranteed money would be foolhardy. They barely have any money on the books, with an estimated payroll in the $75MM range, per RosterResource. That’s half their 2024 payroll. Selling low on Robert and watching him bounce back to stardom elsewhere would be agonizing for the Sox and their fans.
It all makes Robert a very difficult player to trade this winter. The Sox have no urgency to shed the relatively small amount that remains on his contract. Other clubs surely feel there’s little sense in trading top-tier prospects for an oft-injured player coming off a 100-game season that was the least-productive stint of his career.
The likeliest outcome would seem to be a midseason trade. If Robert bounces back, the Sox can put him back on the block and effectively market two-plus years of his services. If he continues to struggle, they could move him for a light return, knowing the eventual likelihood was that his option would be bought out anyhow. Perhaps a team could throw caution to the wind and make a surprisingly strong offer for him in the near future, but that seems unlikely. The Sox did move Dylan Cease in spring training when his Cactus League performance quieted some concerns about a pedestrian 2023 season, so it’s possible a big spring from Robert could garner some attention. In all likelihood, though, he seems ticketed to remain on the Sox to open the season, and clubs around the game will keep a close eye on his early performance. If he shows well in April, Chicago GM Chris Getz could follow in Miami counterpart Peter Bendix’s footsteps and make Robert available in late April/early May — as the Marlins did with Luis Arraez.
KBO’s Kiwoom Heroes Sign Kenny Rosenberg
The Kiwoom Heroes of the Korea Baseball Organization announced their trio of foreign-born players for the 2025 season. The Heroes signed outfielders Yasiel Puig ($1MM) and Ruben Cardenas ($450K salary with $150K in incentives) and left-hander Kenny Rosenberg ($700K salary with $100K in incentives). The deals were relayed (on X) by Dan Kurtz of MyKBO.net.
Rosenberg is the only one of the trio who appeared in the majors in 2024. The 29-year-old southpaw pitched in seven games for the Angels, allowing an even 6.00 ERA across 24 innings. It was the third straight season in which Rosenberg made a handful of appearances for the Halos. He worked as a depth option for the rotation or low-leverage relief and combined for a 4.66 mark over 67 2/3 frames.
Los Angeles released Rosenberg within the first few days of the offseason. This will be the first overseas stint for the Cal State Northridge product. Rosenberg had previously split his eight-year professional career between the Rays and Angels organizations. He has a solid Triple-A track record. Over parts of five seasons at the top minor league level, he carries a 4.10 ERA while striking out a quarter of opposing hitters.
Puig hasn’t appeared in the majors since 2019. He played the 2022 season in Korea with the Heroes. Puig spent the ’24 campaign in Mexico. Cardenas spent most of this this year in Triple-A. He divided his time between the Rays’ and Phillies’ systems but didn’t get a big league call. He signed with the KBO’s Samsung Lions late in the year but only made seven appearances. The Cal State Fullerton product should get a more significant opportunity for the Heroes.
Guardians Re-Sign George Valera To Minor League Deal
The Guardians announced they’ve brought back former top outfield prospect George Valera on a minor league deal. He’ll get an invite to big league Spring Training as a non-roster player.
Valera, 24, was a notable international amateur signee back in 2017. He raked in the low minors and got to Double-A at age 20. Valera’s offensive promise made him one of Cleveland’s most touted minor leaguers. He landed in the back half of Baseball America’s overall Top 100 prospects entering both 2022 and ’23. The Guardians made the easy call to put him on the 40-man roster after the ’21 season rather than expose him to the Rule 5 draft.
The left-handed hitter’s stock has dropped significantly over the past couple years. While Valera had an impressive age-21 season at Double-A, he hasn’t carried that over to the top minor league level. Over parts of three seasons with Triple-A Columbus, he owns a middling .229/.336/.424 batting line. He has walked at a strong 13.5% clip but gone down on strikes in 26.7% of his 865 Triple-A plate appearances.
A litany of injuries hasn’t done him any favors. Valera has missed time with hamstring issues and underwent surgery to repair a hamate fracture in his right hand over the 2022-23 offseason. His ’24 campaign was cut short in September, as he injured his right knee and required patellar tendon surgery. That came with at least a six-month recovery timeline, so his availability for Spring Training games is in question.
Cleveland no longer felt they could carry that profile on their 40-man roster. They designated Valera for assignment last week as they added four players to the roster to ensure they wouldn’t lose them in the Rule 5 draft. The non-tender deadline allowed the Guards to cut Valera loose without putting him on waivers. He had a few days to gauge the market but seemingly didn’t find any team springing to offer him a 40-man spot. Valera returns to the only organization he’s known but will need to play his way back onto the roster as he tries to reach the majors.