The Tigers designated Enns for assignment Thursday.

The transaction will free up a spot on the 40-man roster for Codi Heuer, who was acquired via trade. Enns has posted a 5.60 ERA and 15:4 K:BB over 17.2 innings with the Tigers this season, making two starts and five relief appearances.

The Rangers traded Heuer to the Tigers on Thursday in exchange for cash.

Since being sent down to Triple-A in early June, Heuer has posted a 3.63 ERA and 1.27 WHIP alongside a 28:4 K:BB in 17.1 innings. He'll now provide additional bullpen depth to the Tigers' 40-man roster, but he'll begin his tenure in the organization at Triple-A Toledo.

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.