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Christian Koss

Giants Select Christian Koss

By Anthony Franco | March 26, 2025 at 7:46pm CDT

The Giants announced that they’ve selected infielder Christian Koss onto the 40-man roster. He’ll break camp and will make his major league debut once he gets into a game. San Francisco optioned Grant McCray and Brett Wisely while reassigning non-roster invitees Joel Peguero and Max Stassi to Triple-A Sacramento. The Giants also placed Jerar Encarnacion on the 10-day injured list with a fracture in his left hand that’ll require surgery. They placed catcher Tom Murphy on the 60-day injured list to open a 40-man roster spot for Koss.

Koss, 27, is entering his second season in the San Francisco organization. The Giants acquired him from the Red Sox in a minor league deal on the eve of the ’24 campaign. It was the second trade of his career. Koss was initially a 12th-round pick by Colorado and went to the Red Sox in a minor trade in 2020. He reached Triple-A in the Boston system before being traded.

The UC-Irvine product divided his first season with San Francisco between the top two minor league levels. He raked at a .386/.453/.627 clip over 25 Double-A games but posted a more modest .257/.332/.415 line across 197 Triple-A plate appearances. Koss played quite well in Spring Training, hitting .341 with five walks and seven strikeouts through 47 trips to the plate. He can bounce around the infield and provides a speed element off the bench. Koss and Casey Schmitt will work as utility players behind Tyler Fitzgerald, Willy Adames and Matt Chapman.

Murphy, who has dealt with plenty of injuries throughout his career, is currently shelved with a herniated disc in his back. He has received multiple epidural injections. He’ll miss at least the first two months of the season. Sam Huff will begin the season as the backup catcher behind Patrick Bailey.

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San Francisco Giants Transactions Christian Koss Jerar Encarnacion Tom Murphy

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Giants Notes: Stassi, Huff, Villar, Schmitt

By Mark Polishuk | March 23, 2025 at 10:57pm CDT

Max Stassi won’t exercise the opt-out clause in his minor league contract, Susan Slusser of the San Francisco Chronicle writes, and the catcher will instead remain in the Giants organization and play with Triple-A Sacramento.  Yesterday marked the first of three opt-out dates automatically included in Stassi’s contract due to his Article XX(b) free agent status, and Stassi’s next chance to evaluate his future will come on May 1 if he hasn’t yet been added to the Giants’ roster.

There apparently wasn’t much drama in the competition between Stassi and Sam Huff to be Patrick Bailey’s backup catcher, as Slusser notes that Stassi “has known the plan for a while and is fine with it.”  If anything, playing in Sacramento has particular appeal for the catcher because he lives in the city and can spend more time with his family.  Playing in the minors also allows Stassi the more regular on-field action he needs to ramp up after undergoing hip surgery last year.

Tom Murphy will miss the start of the season due to a herniated disc, creating the opening for Huff to eventually win the backup job.  Formerly a top prospect in the Rangers’ farm system, Huff’s defense was often called as a question to stick in the catching role, and Jonah Heim ended up passing Huff on the depth chart.  After Huff’s numbers dropped off at Triple-A last year, Texas designated the backstop for assignment, and the Giants claimed him away off waivers in January.  The change of scenery seems to have helped thus far, as Huff has been tearing it up at the plate in the Cactus League.

The rest of San Francisco’s bench mix has yet to be determined, though Luis Matos will likely claim the backup outfielder role.  Since it doesn’t seem like Jung Hoo Lee’s recent back issue is serious (“I don’t even want to use the word injury, it was so mild,” Lee told Slusser and other reporters), the Giants could take two infielders from the group of Casey Schmitt, Brett Wisely, David Villar, and prospect Christian Koss.

Villar seems to be the odd one out, as Slusser feels the Giants will be designating him for assignment this week since Villar is out of minor league options.  The infielder hit a respectable .231/.331/.455 over 181 plate appearances in his 2022 rookie season, but then struggled badly over 140 PA in 2023 and seemed to fall out of favor for playing time.  Villar has a very impressive .268/.377/.511 slash line and 60 homers over 1182 career Triple-A plate appearances, with the caveat that that production came in Sacramento in the hitter-friendly Pacific Coast League.  A rival team in need of infield depth might be impressed enough by those numbers to take a flier on Villar if he does up on the waiver wire in the coming days.

There would seemingly be a lot more interest if the Giants made Schmitt available, as Slusser reports that multiple teams have expressed trade interest this offseason.  The Giants, however, don’t have much interest in moving Schmitt, who is still two seasons away from even gaining arbitration eligibility.  He also has one minor league option year remaining, giving the Giants flexibility in sending him back and forth from Triple-A.

Schmitt has a good track record of Triple-A results, and he showed improvement at the big league level in 2024, albeit in significantly fewer at-bats than he received in his 2023 rookie season.  Schmitt hit .206/.255/.324 in 277 PA in 2023, and then bumped that up to a .252/.283/.477 slash line over 113 PA last year.  In theory, Schmitt should again see limited action now that Willy Adames was signed to bring more stability to San Francisco’s infield, which in turn bumped Tyler Fitzgerald into a regular second-base role.

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Notes San Francisco Giants Brett Wisely Casey Schmitt Christian Koss David Villar Max Stassi Sam Huff

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Minor MLB Transactions: 12/3/20

By Connor Byrne | December 3, 2020 at 10:00pm CDT

The latest minor moves from around baseball…

  • The Rays have signed righty David Hess to a minors deal, Marc Topkin of the Tampa Bay Times tweets. The Orioles, who chose Hess in the fifth round of the 2014 draft, outrighted him in October. He debuted in the majors in 2018 and has since recorded a 5.86 ERA/6.41 FIP with 6.76 K/9 and 3.26 BB/9 in 190 1/3 innings.

Earlier transactions:

  • The Rockies announced that they have acquired left-hander Yoan Aybar from the Red Sox for infielder Christian Koss. Aybar, now 23, didn’t produce much as an outfielder through 2017, which led the Red Sox to move him to the mound. With a fastball that can reach triple digits, Aybar pitched to a 4.61 ERA with 11.1 K/9 and 6.5 BB/9 in 56 2/3 innings between the Single-A and High-A levels in 2019. Koss, who will turn 23 in January, was a 12th-round pick of the Rockies in 2019 who hasn’t gotten past rookie ball. He did perform very well there during his first pro season, though, as he slashed .332/.447/.605 with 11 home runs in 238 plate appearances.
  • The Brewers tweeted that they’ve signed third baseman Zach Green to a minor league contract with an invitation to big league camp. The 26-year-old was a third-round pick of the Phillies in 2012 who spent the previous two seasons in the Giants organization. Green made his MLB debut in 2020 and totaled 16 plate appearances, though he picked up just two hits. However, Green isn’t far removed from an excellent 2019 showing in Triple-A, where he slashed .282/.380/.659 with 25 home runs in 297 plate appearances.
  • Right-hander Zach Thompson announced on Twitter that he has signed with the Marlins. It’s presumably a minors deal for Thompson, who had been with the White Sox since they selected him in the fifth round of the 2014 draft. The 27-year-old topped out in Triple-A ball in 2019 with 70 1/3 innings of 5.50 ERA ball. While Thompson had difficulty preventing runs then, he did post impressive strikeout and walk numbers (10.0 K/9, 2.9 BB/9).
  • The Pirates outrighted first baseman/outfielder Will Craig to Triple-A Indianapolis on Wednesday, Adam Berry of MLB.com tweets. Craig joined the Pirates as a first-rounder in 2016, but his major league impact has been minimal to this point. He collected four plate appearances in his Pittsburgh debut last season, but he went hitless in that short span and the Pirates designated him for assignment last week. In his most recent minor league action, in 2019, the 26-year-old batted .249/.326/.435 with 23 homers across 556 plate appearances at the Triple-A level.
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Boston Red Sox Colorado Rockies Miami Marlins Milwaukee Brewers Notes Pittsburgh Pirates Tampa Bay Rays Transactions Christian Koss David Hess Will Craig Yoan Aybar Zach Green Zach Thompson

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