Criswell will start Friday's game against the Astros, Chris Cotillo of MassLive.com reports.

The right-hander was called up from Triple-A Worcester on Tuesday and will step into Boston's rotation to fill the spot vacated by Richard Fitts' demotion earlier this week. Criswell, who's worked out of the bullpen in each of his six MLB appearances this year, has a 5.06 ERA, 1.78 WHIP and 5:3 K:BB over 10.2 innings. The 29-year-old righty may be in line for just a spot start, as the newly acquired Dustin May is scheduled to start Sunday's series finale and could stick as the fifth member of the rotation over Criswell moving forward.

Ferguson threw a clean seventh inning with no strikeouts in Thursday's 6-0 win over the Rangers.

Ferguson got off on the right foot in his team debut, though it's worth noting he entered in a low-leverage situation as the Mariners nursed a 6-0 lead. While the 29-year-old southpaw may not be part of the high-leverage mix right off the bat, it's not out of the question that he'll eventually work his way into a setup role behind closer Andres Munoz. Ferguson is just one of two active lefties in Seattle's bullpen along with Gabe Speier.

Thornton was on crutches following Thursday's game against the Rangers and believes he suffered a serious Achilles injury, Daniel Kramer of MLB.com reports.

Thornton was injured while trying to cover first base late in Thursday's game and appeared to suffer a serious leg injury. He'll be sent for an MRI on Friday, at which time a diagnosis should become official.

Thornton suffered a left leg injury Thursday against the Rangers and departed on a cart, Adam Jude of The Seattle Times reports.

Thornton entered the game in the eighth inning and successfully recorded five outs. He then suffered what appeared to be a serious leg injury while trying to cover first base. Thornton will almost certainly need a stint on the injured list, but just how long he'll be sidelined remains to be seen.

Hiraldo was recalled by the Orioles on Thursday.

Hiraldo has spent most of the season in the minors but has made three appearances in the majors. The Orioles are dealing with injuries and also traded away depth in their bullpen, so Hiraldo could get an extended look in the majors down the stretch.

De Los Santos was optioned to Triple-A Scranton/Wilkes-Barre on Thursday, Max Goodman of NJ.com reports.

De Los Santos was activated from the injured list Saturday and has made two scoreless appearances since. The Yankees made a flurry of additions to their bullpen at the trade deadline, costing De Los Santos his spot on the big-league roster.

Hamilton was optioned to Triple-A Scranton/Wilkes-Barre on Thursday, Max Goodman of NJ.com reports.

Hamilton had been fairly effective for the first three months of the season, but his ERA ballooned to 6.10 across 10.1 innings in July. He could contribute in the majors again in 2025, though he'll likely be limited to low leverage given New York's stacked bullpen.

Enns was traded from the Tigers to the Rays in exchange for cash considerations Thursday.

Enns was designated for assignment earlier in the day after the Tigers acquired Codi Heuer. However, he now looks likely to immediately contribute to Baltimore's bullpen. He's maintained a 5.60 ERA and 1.53 WHIP across 17.2 innings in the majors this season.

The Guardians claimed Hernandez off waivers from the Tigers on Thursday, Tim Stebbins of MLB.com reports.

Hernandez was pushed off the Tigers' 40-man roster last Thursday after surrendering 13 runs (12 earned) in just 10.2 innings. He'll now reclaim a 40-man roster spot upon moving to the Guardians organization, though he'll likely have to redeem himself in Triple-A before he gets another shot in the bigs.

Loaisiga earned the save in Thursday's 7-4 win over the Rays, allowing one hit and logging a strikeout in a scoreless ninth inning.

With both Devin Williams and Luke Weaver having pitched Wednesday, it was Loaisiga who got the call in the ninth inning Thursday to close out a three-run lead. The right-hander managed to work around a Matt Thaiss lead-off double to pick up his first save since 2022. Loaisiga has been solid of late, delivering six straight scoreless appearances (4.2 innings). However, he's unlikely to see many save chances going forward, as the Yankees added both David Bednar and Camilo Doval at the trade deadline to fortify the back end of their bullpen.