The Tigers acquired Finnegan from the Nationals on Thursday in exchange for Josh Randall and R.J. Sales, Ken Rosenthal of The Athletic reports.

Finnegan has notched 20 saves for the Nationals this season, collecting a 4.38 ERA and 32:14 K:BB over 39 innings along the way. He is unlikely to unseat Will Vest as the Tigers' primary closer option, but Finnegan will give manager A.J. Hinch another late-inning option. With Finnegan no longer around, Jose Ferrer could be the current favorite for saves in the Nationals' bullpen.

Dominguez struck out two in a perfect eighth inning to record a hold in Wednesday's win over the Orioles.

Facing the team that traded him away between the games of Tuesday's doubleheader, Dominguez got some immediate revenge by fanning Tyler O'Neill and Jordan Westburg to protect a 9-8 lead. The veteran righty has a 1.21 ERA, 1.16 WHIP and 32:10 K:BB through 22.1 innings since the beginning of June, and he'll be one of the top setup options for Toronto's stretch run in front of closer Jeff Hoffman.

Leiter (leg) threw a live batting practice session Thursday, Jorge Castillo of ESPN.com reports.

It appears to be the first time he's faced hitters since landing on the 15-day injured list in early July with a left fibular head stress fracture. Per Yankees manager Aaron Boone, Leiter could be ready to rejoin the bullpen during the team's series early next week in Texas.

The Athletics acquired Nunez, shortstop Leo De Vries, right-hander Braden Nett and right-hander Henry Baez from the Padres on Thursday in exchange for right-hander Mason Miller and left-hander JP Sears, Jeff Passan of ESPN.com reports.

Of the four players acquired by the Athletics, Nunez has the closest proximity to the big leagues. He had occupied a spot on the Padres' 40-man roster and made his MLB debut earlier in July, making four relief appearances for San Diego before being demoted shortly before the All-Star break. He had otherwise spent the entire 2025 season in the minors and compiled a 2.06 ERA and 1.03 WHIP while striking out 56 batters over 35 innings between Double-A San Antonio and Triple-A El Paso. Even if the Athletics opt to have Nunez begin his time in the organization at Triple-A Las Vegas, the right-hander likely won't have to wait long to earn a look in the big-league bullpen.

The Rays recalled Rock from Triple-A Durham on Thursday.

Rock made one relief appearance for the Rays earlier this season, allowing two runs over two innings. The lefty has been used primarily as a starter in the minors, so he can give the bullpen some length.

The Rays recalled Seymour from Triple-A Durham on Thursday.

Tampa Bay had optioned the lefty to Durham on Wednesday, but Seymour will rejoin the big club just one day later to take over the 26-man active roster spot that had belonged to right-hander Zack Littell, who was traded to the Reds. Seymour has worked exclusively in relief over his seven appearances with the Rays, but he's made 15 starts at Triple-A this season and could be an option to join the big-league rotation if Tampa Bay isn't yet ready to call right-hander Taj Bradley back up from Durham to replace Littell.

The Tigers acquired Sewald (shoulder) from the Guardians on Thursday in exchange for cash considerations or a player to be named later, Chris McCosky of The Detroit News reports.

Sewald was diagnosed with a moderate teres major strain over the All-Star break and is not expected to be ready to pitch for the Tigers until early September, per Jon Morosi of MLB Network. The veteran reliever holds a 4.70 ERA, 1.17 WHIP and 18:4 K:BB in 15.1 innings this season.

Hoffman struck out one in a perfect ninth inning Wednesday to record his 25th save of the season in a 9-8 win over the Orioles.

After getting tagged for losses in non-save situations during his prior two appearances, Hoffman was locked in as he converted his eighth straight save chance dating back to June 29. Over that span, the right-hander has posted a 3.75 ERA, 0.92 WHIP and 17:1 K:BB through 12 innings.

Perkins allowed one run on one hit with no walks or strikeouts over two innings to notch a save against the Mariners on Wednesday.

Perkins entered in the eighth inning and retired the side in order in that frame. He served up a solo homer to Randy Arozarena in the ninth but didn't give up any additional hits and finished off the win to record his third save. Perkins has been quite effective for the A's since making his big-league debut June 22, posting a 2.75 ERA, 0.92 WHIP and 19:7 K:BB over 19.2 innings spanning eight appearances. Interestingly, manager Mark Kotsay said after Wednesday's contest that closer Mason Miller was unavailable, per Martin Gallegos of MLB.com, despite not dealing with an injury and not having pitched since July 26. Jon Heyman of the New York Post reports that the Athletics and Padres are in discussions on a trade for Miller, and if the fireballing reliever were to be dealt, Perkins could be a candidate to ascend to the closer role.

Garcia earned a save against the Angels on Wednesday, striking out two batters in a perfect inning of work.

It was a relatively stress-free save opportunity for Garcia, who entered for the ninth with the Rangers up by three runs. He needed just 10 pitches (nine strikes) to retire the side in order, beginning and ending his outing with punchouts. Garcia has strengthened his hold on Texas' closer role since the All-Star break, recording all three of the team's saves in the second half. He's not the flashiest closer in the game, but he's largely gotten the job done this season, registering nine saves in 12 chances with 11 holds, a 2.61 ERA, 1.21 WHIP and a 46:16 K:BB over 41.1 innings.