The Cardinals traded Horn to the Tigers on Thursday in exchange for cash, Chris McCosky of The Detroit News reports.

Horn was designated for assignment by St. Louis on Thursday, and he didn't have to wait long to join another team's 40-man roster. The 27-year-old lefty turned in a 6.50 ERA and 1.78 WHIP in 18 innings with the Red Sox last season, and his struggles have continued into the spring with four runs allowed on three hits and five walks in just 2.1 frames. He'll immediately head to Triple-A upon joining his new organization.

Rangers manager Bruce Bochy said Thursday that Bradford (elbow) will begin the season on the 15-day injured list, Kennedi Landry of MLB.com reports.

An MRI on Bradford's left elbow came back negative for structural damage, but he will be shut down for up to 10 days to allow the soreness to subside. The left-hander will need to rebuild his stamina after that, so it's possible he'll require longer than a minimum stay on the IL. Jack Leiter and Kumar Rocker are the primary candidates to fill Bradford's slot in Texas' rotation.

Soriano tossed three innings in a Cactus League contest against the White Sox on Wednesday, allowing one run on five hits and three walks while striking out five batters.

While Soriano allowed frequent traffic on the basepaths, only one of the batters he put on base came around to score. This was the second straight spring appearance during which Soriano issued three walks in three innings, and he's handed out eight free passes over nine frames through four starts this spring. On the plus side, he's also struck out 13 batters after posting a modest 7.7 K/9 in the majors last season. Soriano is locked into a spot in the middle of the Angels' rotation for the coming campaign.

Topa (shoulder) threw a bullpen session Tuesday, the Minnesota Star Tribune reports.

Topa left last Wednesday's game due to right shoulder tightness. He said the move was largely precautionary, and he did not require an MRI. Topa expects to throw again Friday. While he's making progress in his recovery, it's not clear if he'll be ready for Opening Day.

Pepiot allowed two earned runs on three hits and two walks while striking out four across four innings in Wednesday's Grapefruit League game against the Tigers.

Pepiot made only his second spring start, though he's already stretched out to 72 pitches. He hasn't been particularly sharp in his pair of outings, allowing three earned runs across six innings while maintaining a 6:3 K:BB. The Rays have seven potential starters for their rotation, though Pepiot figures to be locked into a starting role throughout the campaign.

The Athletics optioned Lopez to Triple-A Las Vegas on Wednesday.

The A's acquired Lopez this winter as part of a trade with the Rays, and in his first spring with his new team, the 27-year-old southpaw racked up four strikeouts in three shutout frames. However, he owns a 4.76 ERA across 22.2 career MLB innings, so the Athletics will opt to give him a few more looks in the minors before admitting him into their big-league staff.

Sabrowki (elbow) played catch from 60 feet Wednesday.

Sabrowski was shut down from throwing for a few days after receiving an injection Friday to treat inflammation in his elbow. He's now been given the green light to start up a throwing program, though it's still unclear how far away he is from pitching in a game.

Walters (shoulder) threw live batting practice Wednesday.

Walters has been out with shoulder stiffness since late February, but he seems to be making progress in his recovery after throwing a bullpen session Sunday and now progressing to live hitters. That being said, it remains unclear if he'll be ready for Opening Day.

Stephenson (elbow) said Wednesday that he's throwing up to 92 miles per hour during his bullpen sessions, Jeff Fletcher of The Orange County Register reports.

Stephenson is already on the 60-day injured list while he completes his recovery from a UCL reconstruction procedure involving an internal brace, which he underwent May 1, 2024. The right-hander said he'll begin incorporating breaking balls into his bullpen sessions next week, and if all continues to go well in his throwing progression, he'll likely start facing hitters in April. Based on where he currently stands in his rehab program, Stephenson could be a candidate to return from the IL around when he's first eligible in late May.

The Mariners reassigned Lawrence to minor-league camp Wednesday.

Lawrence re-signed with Seattle in November on a minor-league deal that included an invitation to big-league spring training, but the 37-year-old righty never appeared especially likely to win a spot in the Opening Day bullpen. He's previously seen big-league action in parts of four seasons from 2017 through 2023, logging a lifetime 6.75 ERA and 1.69 WHIP over 124 innings.