The Tigers announced Wednesday that Horn is recovering from arthroscopic left elbow surgery, Chris McCosky of The Detroit News reports.

It's unclear when exactly Horn had the operation, so a timetable for him to resume throwing is also cloudy. The lefty made 10 appearances out of the Tigers bullpen last season, collecting a 1.59 ERA and 10:7 K:BB over 11.1 innings.

Gipson-Long is recovering from a left oblique strain, Chris McCosky of The Detroit News reports.

It's unclear at this point when Gipson-Long suffered the injury or how long he might be shelved. The right-hander already looked to be on the outside looking in for a spot in the Tigers' rotation, even with Reese Olson (shoulder) and Jackson Jobe (elbow) potentially set to miss the entire season, and this development won't help his case. Gipson-Long has missed much of the last two seasons due to Tommy John and hip surgeries.

Dingler will be eased into spring training after undergoing arthroscopic right elbow surgery, Chris McCosky of The Detroit News reports.

It's unclear when exactly Dingler had the operation, but he had a similar surgery two years ago and does not expect to be sidelined for much of camp. Dingler -- who won a Gold Glove in 2025 -- should be fine for Opening Day, but if his recovery lags, Jake Rogers would step in as the Tigers' primary catcher.

Schwellenbach said Wednesday that he could require arthroscopic surgery to remove bone spurs from his right elbow, Mark Bowman of MLB.com reports.

Schwellenbach is already required to miss the first two months of the season after being placed on the 60-day injured list Tuesday, and a scope on his elbow would likely extend that absence. The right-hander was also sidelined for the final three months of the 2025 campaign with a small fracture in his elbow. It's unclear when a decision about surgery will be made, but it should be soon.

The Rangers signed Montgomery (elbow) to a one-year, $1.25 million contract Wednesday, Evan Grant of The Dallas Morning News reports.

Montgomery had a hybrid UCL reconstruction last March but hopes to be major-league ready around the All-Star break. The 33-year-old had a disastrous 2024 season with the Diamondbacks after signing late in spring training, posting a 6.23 ERA over 25 appearances. He was terrific in 2023, however, which included starring for the Rangers down the stretch of the regular season and their run to the World Series. The two sides are hoping to recapture some of that magic in 2026.

Quintana signed a one-year, $6 million contract with the Rockies on Tuesday, Jesse Rogers of ESPN.com reports.

Quintana will join Colorado following a one-year stint in Milwaukee, with whom he produced a 3.96 ERA and 1.29 WHIP in 131.2 innings in 2025. The 37-year-old veteran doesn't make many bats miss, so his ability to keep the ball in the yard will be crucial to his success -- a task that will only be made more challenging by making his home starts at Coors Field.

Atlanta placed Jimenez (knee) on the 60-day injured list Tuesday.

Jimenez missed all of last year after undergoing surgery in November 2024 to address damaged cartilage in his left knee. He underwent another cleanup procedure in November 2025 for the same issue, and he will now officially sit out at least the first 60 days of the new season. His 40-man roster spot will be filled by Brett Wisely, who was acquired in a trade with the Rays on Tuesday.

DeLauter will play center field and right field during training camp, Tim Stebbins of MLB.com reports.

DeLauter has a chance to be an everyday outfielder and middle-of-the-order bat for the Guardians in 2026, but he'll need to stay healthy. Since being drafted in the first round in 2022, DeLauter has played just 138 regular-season games in the minors due to a variety of injuries. He played just 42 games last season due to core muscle surgery in March and right wrist surgery in July. When healthy, DeLauter has made an impact offensively, posting a .888 OPS during his career in the minors.

The Rays traded Wisely to Atlanta on Tuesday in exchange for cash.

The 26-year-old infielder was DFA'd by Tampa Bay on Friday after the team acquired Victor Mesa in a trade with Miami. Wisely will now recapture a 40-man spot upon moving to Atlanta, but he is out of minor-league options and will have to break spring training with the big-league club to hold onto his roster spot. Joe Jimenez (knee) was placed on the 60-day IL in a corresponding move.

Arizona general manager Mike Hazen said Tuesday that Smith will stick to first base instead of playing multiple positions this season, Steve Gilbert of MLB.com reports. "We've never really given him a spot to sort of solidify himself defensively, Hazen said of Smith, who at times has been used as an outfielder. "We'll be doing that this year."

Entering camp, the Diamondbacks plan to platoon Smith (against right-handers) with Carlos Santana (against lefties). Implied in the general manager's comments is the expectation that Smith will show improved defense, which would help him maintain the strongside platoon role. Smith recorded a .258/.362/.434 slash line with eight home runs and 28 RBI over 87 games and 287 plate appearances in 2025, the most playing time he's had since 2021.