The White Sox placed Altavilla on the 15-day injured list Saturday with a right lat strain.

Altavilla gave up one run in just one-third of an inning during his appearance Friday, and it appears he came away from his outing with a lat injury. He'll now be forced to miss at least the next 15 days while he recovers, and the White Sox will bring up Owen White from Triple-A Charlotte to fill the void in their bullpen.

The Tigers optioned Hanifee to Triple-A Toledo on Saturday, Evan Woodbery of MLive.com reports.

After giving up two runs (one earned) and taking the loss Friday, Hanifee will be sent down to the minors in order to make room for the newly acquired Charlie Morton. Hanifee still boasts a 3.10 ERA and 1.32 WHIP through 52.1 innings in 2025, making it likely he'll put on a Tigers uniform again before the end of the season.

The Reds optioned Richardson to Triple-A Louisville following Friday's game against Atlanta.

Richardson will cede his spot on the 26-man active roster to right-hander Zack Littell, whom Cincinnati acquired from Tampa Bay prior to Thursday's trade deadline. Richardson has spent most of the season in the majors and has a 4.15 ERA, 1.50 WHIP and 27:19 K:BB across 34.2 innings this season out of the bullpen.

The Pirates recalled Moreta from Triple-A Indianapolis on Saturday.

Moreta was reinstated from the injured list in mid-June after fully recovering from Tommy John surgery in May of 2024. He has pitched well in Triple-A this season with a 2.56 ERA, 1.28 WHIP and 48:19 K:BB across 31.2 innings, and his return to the majors will bolster the Pirates' bullpen. Thomas Harrington was optioned to Triple-A following Friday's game against the Rockies in a corresponding move.

The Rockies recalled Rolison from Triple-A Albuquerque on Saturday.

Rolison will take the spot on the 26-man roster vacated by Antonio Senzatela (finger), who was placed on the 15-day injured list in a corresponding move. Rolison has a 3.22 ERA and 1.49 WHIP in Triple-A this season, but that success hasn't translated to the majors, where he has a 7.34 ERA, 1.76 WHIP and 18:15 K:BB across 30.2 innings.

The Guardians optioned Herrin to Triple-A Columbus on Saturday.

The 28-year-old southpaw will head back to the minors after less than a week with the Guardians to make room for Carlos Hernandez, who was claimed off waivers from Detroit on Thursday. Herrin carries a 4.06 ERA and 1.55 WHIP through 31 innings with Cleveland this season and could very well rejoin the big-league squad later this summer if/when the Guardians need bullpen help.

The Guardians recalled Hernandez from Triple-A Columbus on Saturday.

Hernandez owns a 6.69 ERA and 1.79 WHIP this year through 36.1 innings between the Tigers and Phillies. After being claimed by the Guardians on Thursday, the 28-year-old will replace Tim Herrin in Cleveland's bullpen and will most likely be limited to low-leverage situations.

Diaz (5-1) took the loss Friday as the Mets fell to the Giants, giving up an unearned run on a hit and a walk in the 10th inning. He struck out one.

New York forced an extra inning with a rally in the eighth inning, but Diaz couldn't prevent the phantom runner from crossing the plate in the top of the 10th. The Mets added former Cardinals closer Ryan Helsley to their bullpen at the trade deadline to fill a setup role, but Diaz remains entrenched in the top job -- he hasn't been tagged for an earned run since June 2, delivering a 0.82 ERA and 26:9 K:BB over his last 18.1 innings along with an unsullied ERA.

Helsley gave up two hits and struck out three in a scoreless ninth inning during Friday's extra-inning loss to the Giants.

Acquired from the Cardinals at the trade deadline, Helsley was impressive in his Mets debut, with seven of his 16 pitches (14 strikes) topping 100 mph. The right-hander will immediately slot in as the top setup man in front of closer Edwin Diaz, and while Helsley had a shaky start to his 2025 campaign, he's been in elite form over the last six weeks or so, posting a 0.75 ERA, 1.08 WHIP and 14:2 K:BB over his last 12 innings.

The Red Sox optioned Criswell to Triple-A Worcester on Saturday.

Criswell fired seven innings of one-run ball Friday against the Astros, but he'll end up as the roster casualty necessary to make room for Dustin May in Boston's rotation. Criswell sports a 3.57 ERA through 17.2 innings with the Red Sox this season and would likely be the next man up if any of Boston's starters need to miss time down the stretch.