Casas (knee) has been at Boston's training facility in Fort Myers since the end of the regular season, Lauren Campbell of MassLive.com reports.

Red Sox manager Alex Cora continues to have faith in the young first baseman, who was limited to 29 games last season. "That's great for a young guy to know what he needs to do to compete," the manager said. "He's done that. Hopefully we can get him heathy." The shortened 2025 season was the second consecutive abbreviated campaign for Casas, who was limited to 63 games in 2024 due to a fractured rib. Casas is not a lock to return as the starting first baseman, and the Red Sox are rumored to have interest in free-agent first baseman Pete Alonso.

Davidson signed a minor-league contract with Tampa Bay on Monday, which includes an invitation to spring training, Ari Alexander of KPRC 2 Houston reports.

Davidson bounced between the Athletics and Angels during the 2025 campaign, slashing .167/.222/.286 with one home run, four RBI and three runs scored in 19 games. He'll have a chance to crack the Opening Day roster after receiving an invitation to big-league camp.

The Orioles designated Noda for assignment Saturday.

Noda was removed from Baltimore's 40-man roster to help make room for the additions of Will Robertson from Pittsburgh and Drew Romo from Colorado. Noda slashed just .106/.276/.170 over 23 MLB games between the White Sox and Orioles this past season, though he finished the Triple-A season with a .770 OPS through 291 plate appearances.

Twins president of baseball operations Derek Falvey has indicated that Clemens is in line to be the team's primary first baseman next season, Aaron Gleeman and Dan Hayes of The Athletic report.

Clemens was traded to the Twins in late April and went on to slash .216/.284/.442 with 19 home runs over 112 contests. He split most of his reps between first base (47 starts) and second base (34 starts) during his time in Minnesota but also saw some action in the outfield (12 starts). Clemens is just a .206/.263/.403 career hitter and will turn 30 in May, but he took significant strides in his batted-ball metrics in 2025, sporting a 48.3 percent hard-hit rate and 12 percent barrel rate. Fellow left-handed hitter Edouard Julien is likely Clemens' primary competition for the first base job against righties, and neither player has minor-league options remaining.

The Red Sox designated Lowe for assignment Tuesday.

Lowe had been set to be non-tendered later this week, so this transaction just serves a way to remove him from the 40-man roster sooner. The veteran first baseman slashed only .228/.307/.381 with 18 home runs over 153 regular-season games between the Nationals and Red Sox in 2025. Lowe will become a free agent once he officially clears waivers.

Naylor and the Mariners are finalizing a five-year contract Sunday, pending a physical, Jeff Passan of ESPN.com reports.

Naylor will remain with Seattle after being traded to the team from Arizona in late July. The first baseman compiled a .295/.353/.462 slash line while producing 20 home runs, 92 RBI, 81 runs scored and a career-high 30 stolen bases over 147 regular-season contests with the Diamondbacks and Mariners in 2025. Naylor registered a .299 average with nine homers and 33 RBI in 54 regular-season games with Seattle. The 28-year-old will now hold down the first-base position for the team for a half-decade moving forward.

Kurtz was named the American League Jackie Robinson Rookie of the Year on Monday.

Kurtz was the clear frontrunner for the award, which was only confirmed when the results showed he received all 30 first-place votes. He becomes the eighth player in Athletics history to bring home Rookie of the Year honors. Kurtz slashed .290/.383/.619 with 36 home runs, 86 RBI, two stolen bases and 90 runs scored in 117 games during his rookie campaign.

The Rays designated Seymour for assignment Thursday.

Seymour saw extended big-league action to close the regular season, and he slashed .205/.253/.282 with a 38.6 percent K rate across 83 plate appearances. It was a disappointing MLB debut for the first baseman who launched 30 homers at Triple-A Durham before being called up. He'll now be exposed to waivers, though he could remain with the Rays if he goes unclaimed.

Elko is expected to be sidelined for eight months following surgery Tuesday to repair a torn ACL in his right knee, Scott Merkin of MLB.com reports.

Elko was diagnosed with a right knee sprain July 11 and was sidelined for three-plus weeks. He did not miss any additional time after that during the 2025 season, but a recent medical exam evidently revealed the need for surgery. With Elko slated to be out until around midseason of next year, he'll likely open the campaign on the 60-day injured list.

Guerrero went 2-for-4 with a two-run homer, a walk and an additional run scored during Tuesday's 6-2 win over the Dodgers in Game 4 of the World Series.

With the Blue Jays down 1-0 in the top of the third inning and Nathan Lukes standing on first, Guerrero hit a 395-foot shot off Shohei Ohtani to give Toronto a lead that it wouldn't relinquish for the rest of the game. The 26-year-old slugger has now belted seven home runs in the postseason and sports a monstrous 1.306 OPS through 74 plate appearances.