Weathers (lat) will throw a live batting practice session Wednesday, Christina De Nicola of MLB.com reports.

The left-hander will face hitters for the first time since he was shelved in early June due to a lat strain. If Weathers gets through Wednesday's session without any hiccups, he could be cleared to begin a rehab assignment. Weathers is hoping to return from the 60-day injured list and rejoin the Miami rotation at some point in September.

The Giants optioned Winn to Triple-A Sacramento on Monday.

Winn was up with the big club for just a few days while Ryan Walker was on the paternity list, but Winn will head back to Sacramento now that Walker has rejoined the active roster. The 27-year-old Winn made two scoreless relief appearances during his time with the big club.

The Cubs announced that Horton was removed in the third inning of his start in the first game of Monday's doubleheader with the Brewers due to a blister on his right middle finger, Maddie Lee of the Chicago Sun-Times reports.

Horton was visited on the mound on three occasions during the afternoon before he was lifted from the contest after recording three strikeouts and allowing one earned run on four hits and one walk across 2.2 innings. Though the blister isn't a major health concern for the young hurler, it could jeopardize his availability for his next turn through the rotation, which is expected to come this weekend versus the Angels. If Horton ends up requiring a stint on the injured list, the Cubs could recall Javier Assad from Triple-A Iowa to replace the rookie in the rotation.

The Astros announced Monday that Walter has shut down from throwing following a recurrence of left elbow inflammation, Chandler Rome of The Athletic reports.

Walter initially went on the 15-day injured list July 25, and after he resumed playing catch earlier this month, he encountered a setback. It's not clear at this point how long he might be shut down, but at this stage of the season, Walter's availability down the stretch is in question. He's been excellent for Houston in 2025, collecting a 3.35 ERA, 0.93 WHIP and 52:4 K:BB in 53.2 innings.

The Red Sox announced Monday that Houck (elbow) underwent a successful hybrid reconstruction of his right UCL with a flexor tendon repair, Chris Cotillo of MassLive.com reports.

The operation officially ends a disappointing season for Houck, who held a an 8.09 ERA, 1.69 WHIP and 32:17 K:BB in 43.2 innings with the Red Sox before going down with an elbow issue in mid-May and eventually having a setback that required surgery. Houck is hoping to return to action for the Red Sox toward the end of the 2026 season, but that's far from a guarantee.

Wheeler (shoulder) underwent a thrombolysis procedure Monday to remove a blood clot in his right upper extremity.

According to the Phillies' press release, Wheeler's subsequent treatment plan and timeline to return to game action are yet to be determined. More clarity on the right-hander's situation should be available in the coming days and weeks. With Wheeler sidelined indefinitely, Taijuan Walker will continue to hold down a spot in the Philadelphia rotation as the team's No. 5 starter.

The White Sox optioned Burke to Triple-A Charlotte on Monday.

Burke has posted a disappointing 4.28 ERA and 1.44 WHIP across 117.2 innings this season and had failed to go five frames in four of his last five outings. The White Sox remain hopeful that Burke will be a long-term fixture in their rotation, but the righty will attempt to work on his issues in a less pressurized environment for now. Martin Perez will likely slide into Chicago's rotation in Burke's place.

Horton was removed from his start in the first game of Monday's doubleheader with the Brewers midway through the third inning due to an apparent blister on his pitching hand, Bruce Levine of 670TheScore.com reports. He struck out three batters and gave up one run on four hits and one walk over 2.2 frames prior to departing the contest.

The Cubs will likely provide clarity later Monday regarding whether Horton was battling a blister or some other kind of health concern, but the rookie was pulled from the contest after he was visited twice on the mound by Craig Counsell and a team trainer and on an another occasion by pitching coach Tommy Hottovy. Prior to Monday's twin bill, Horton had been the Cubs' top performing starter since the All-Star break, having posted a microscopic 0.32 ERA and 0.71 WHIP in 28.1 innings over his last five starts. After exiting with a 1-0 deficit, Horton will be on the hook for his fourth loss of the season if the Cubs are unable to tie the game or take the lead at any point in the remainder of the contest.

Reds manager Terry Francona said in an interview on MLB Network Radio on SiriusXM that Burns (elbow) will resume a throwing program Monday.

Burns landed on the 15-day injured list Friday after being diagnosed with a Grade 1 right flexor strain, but the fact that the rookie has already been cleared to throw backs up the Reds' optimism that the righty is not facing an extended absence. When Burns returns from the IL, he could be deployed in relief, as the Reds have a bevy of other rotation options and also want to manage the 22-year-old's workload.

Cunningham (undisclosed) walked three batters over 1.1 scoreless innings in his start Wednesday for High-A Hudson Valley after being reinstated from the 7-day injured list.

Cunningham didn't require a rehab assignment at a lower level of the minors prior to being activated, but because he hadn't pitched for Hudson Valley since June 4 due to an unspecified injury, he was on a limited workload Wednesday. The right-hander was able to escape the outing with any damage, but his control was far from on point, as he spotted just 15 of his 30 pitches for strikes. For the season, Cunningham owns a 1.88 ERA, 1.00 WHIP and 47:14 K:BB over 48 innings for Hudson Valley.