The Mariners placed Thornton on the 15-day injured list Friday with a torn left Achilles.

Thornton left Thursday's game against the Rangers on a cart, and imaging confirmed Friday that the right-hander tore his Achilles tendon. The diagnosis will put an early end to his season, and he'll finish 2025 with a 4.68 ERA and 1.30 WHIP alongside a 32:14 K:BB through 42.1 innings. The 31-year-old will likely miss the vast majority of the 2026 season as well.

The Mariners recalled Kowar from Triple-A Tacoma on Friday.

Kowar was optioned to Triple-A on Wednesday, but he'll turn around and head back to Seattle to replace the injured Trent Thornton (Achilles). Kowar will likely take on a middle-relief role with the Mariners after posting a 1.54 ERA and 0.86 WHIP through 11.2 innings with the big club this season.

Boyle is slated to start Sunday's game against the Dodgers in Tampa.

After Tampa Bay optioned right-hander Taj Bradley to Triple-A Durham last week, Boyle stepped into the open spot in the rotation and made his second start of the season for the big club in Tuesday's loss to the Yankees. Despite being roughed up from six runs (four earned) on four hits and three walks over 3.1 frames, Boyle still owns sparkling ratios (2.82 ERA, 0.85 WHIP, 24:9 K:BB in 22.1 innings) at the big-league level this season and appears to have gained some security in the Tampa Bay rotation in the aftermath of Thursday's trade deadline. The Rays acquired right-hander Adrian Houser but shipped out two other starters in Bradley (Twins) and righty Zack Littell (Reds).

The Athletics recalled Nunez from Triple-A Las Vegas on Friday.

Nunez was acquired from the Padres on Thursday in the Mason Miller and JP Sears trade. Nunez made his MLB debut earlier this season with San Diego, registering a 3.86 ERA, 1.71 WHIP and 2:4 K:BB across 4.2 innings. He struck out 14.4 batters per nine innings over 35 frames in the minors.

Clase's locker has been cleared out in the Guardians' clubhouse Friday as he remains under investigation by MLB, Zack Meisel of The Athletic reports.

Clase was placed on non-disciplinary paid leave through Aug. 31 as part of MLB's sports-betting investigation, but his locker being cleared out could signal that the Guardians don't expect Clase to be back with the team this season. Teammate Luis L. Ortiz also had his locker cleared out Friday, as he is also on paid leave in the same gambling investigation. Clase's fall from grace has been quick after he finished third in AL Cy Young voting last season. It remains to be seen if he'll pitch again in the majors.

The Astros recalled Hernandez from Triple-A Sugar Land on Friday, Brian McTaggart of MLB.com reports.

Hernandez has pitched in three games out of the bullpen for Houston this season, logging a 7.71 ERA, 2.36 WHIP and 7:5 K:BB across 4.2 innings. He's been much better at Triple-A, with a 1.70 ERA, 0.97 WHIP and 48:17 K:BB over 37 innings of action.

The Tigers optioned Lee to Triple-A Toledo on Friday, Evan Petzold of the Detroit Free Press reports.

Following the Tigers' plethora of bullpen additions over the last few days, Lee is the odd man out after he's been getting hit hard in recent outings. Lee has registered a 4.10 ERA, 1.10 WHIP and 36:9 K:BB across his first 37.1 major-league innings.

The Blue Jays optioned Schultz to Triple-A Buffalo on Friday, Keegan Matheson of MLB.com reports.

Schultz has pitched in 12 games out of the bullpen for Toronto this season, registering a 4.56 ERA, 1.44 WHIP and 27:8 K:BB across 23.2 innings. Following the Blue Jays' deadline acquisitions of Seranthony Dominguez and Louis Varland, Schultz is the odd man out.

The Red Sox optioned Bernardino to Triple-A Worcester on Friday, Chris Cotillo of MassLive.com reports.

The Red Sox needed to open a spot on the 26-man roster for Steven Matz, so Bernardino heads to Worcester after registering a 3.09 ERA, 1.26 WHIP and 36:22 K:BB across 43.2 innings of relief for Boston this season. Bernardino should be back with the Red Sox at some point this season.

The Twins selected Urena's contract from Triple-A St. Paul on Friday.

Following the Twins' fire sale at the trade deadline, Urena will head to the majors and give the team an arm capable of starting or pitching in long relief. The Twins will be Urena's fourth team this season after he pitched with the Mets, Dodgers and Blue Jays already in 2025, logging a 5.40 ERA, 1.53 WHIP and 10:5 K:BB across 18.1 innings.