Stephan (elbow) will begin a rehab assignment with the rookie-level Arizona Complex League Guardians on Tuesday, Tim Stebbins of MLB.com reports.

Stephan missed the entirety of last season following a UCL reconstruction, but he's finally been cleared for game action following a long rehab process. His rehab assignment will be a lengthy one given how much time Stephan has missed, but he should be ready to rejoin the Guardians' bullpen before the All-Star break.

Walter underwent surgery Monday to repair his right lat, Tim Stebbins of MLB.com reports.

The Guardians didn't divulge a timetable for Walters, but the operation will undoubtedly end the reliever's season. Walter had been shelved since late May with the injury and last week was transferred to the 60-day injured list.

The Red Sox selected Van Belle's contract from Triple-A Worcester on Monday.

Van Belle has collected a 2.29 ERA and 41:7 K:BB over 51 innings covering eight starts and four relief appearances this season at Worcester. The 28-year-old will give the bullpen some length and will be making his major-league debut when/if he gets into a game.

The Red Sox designated Stock for assignment Monday.

Stock struggled Sunday against the Yankees, allowing two runs on one hit and three walks while recording just two outs. He's being sent out in favor of Brian Van Belle, who will give the Red Sox a fresh bullpen arm.

The Mariners outrighted Lawrence to Triple-A Tacoma on Monday.

Lawrence has the ability to decline the outright assignment and become a free agent, but it's not clear what his plans are. The righty swingman holds a 4.08 ERA and 7:1 K:BB over 17.2 innings between the Mariners and Blue Jays in 2025.

Triple-A Durham placed Waguespack on its 7-day injured list May 26 due to an unspecified injury.

Waguespack made four appearances (one start) for the Rays in 2024, but he's pitched exclusively out of the Triple-A bullpen this season since being optioned to Durham coming out of spring training. The 31-year-old righty turned in an 0.46 ERA, 0.73 WHIP and 18:4 K:BB in 19.2 innings with Durham before landing on the shelf.

Sborz (shoulder) resumed throwing breaking balls in a May 30 bullpen session, Shawn McFarland of The Dallas Morning News reports.

On the mend from mid-November surgery on his right shoulder, Sborz has been throwing off a mound for nearly a month now and appears to be close to facing hitters in live batting practice. He'll likely throw live BP on at least a couple occasions before the Rangers send him out on a what will likely be an extended minor-league rehab assignment. Sborz appears unlikely to return from the 60-day injured list until early July at the soonest.

The Twins optioned Adams to Triple-A St. Paul on Monday.

The corresponding move will come Tuesday, when Simeon Woods Richardson is expected to be recalled from Triple-A to start against the Rangers. Adams was called up over the weekend and did not make an appearance out of the Minnesota bullpen.

Uceta (5-1) didn't allow a baserunner across two scoreless innings with three strikeouts to earn the win Sunday against the Marlins.

Uceta struggled in his appearance Friday, allowing two earned runs on three hits while recording just one out. However, he bounced back Sunday and generated an impressive six swinging strikes on only 25 total pitches while also picking up his fifth win of the season. Uceta has a 4.88 ERA on the campaign, but he has turned in a scoreless effort in seven of his last eight appearances.

Munoz picked up the save Sunday against the Angels, allowing one walk and no hits with two strikeouts over a scoreless ninth inning.

Munoz blew each of his last two save chances, but he bounced back with a scoreless ninth frame Sunday to grab his first save since May 23. The 26-year-old hadn't allowed an earned run before his pair of blown saves, and his ERA currently sits at 1.35. Munoz's 18 saves rank third in baseball.