Hurter (back) could start a rehab assignment with Triple-A Toledo this weekend, Chris McCosky of The Detroit News reports.

Hurter was sent down to Triple-A on Aug. 17 and was placed on the injured list with back soreness without making an appearance for Toledo. The 26-year-old has posted a 2.45 ERA in 58.2 innings with the Tigers this season, and once healthy, he's expected to rejoin the big-league bullpen for the tail end of the regular season.

The Tigers placed Finnegan on the 15-day injured list Friday, retroactive to Sept. 1, with a right adductor strain, Evan Woodbery of MLive.com reports.

Finnegan suffered the injury while warming up in the bullpen Wednesday, and he'll require a stint on the injured list. Finnegan hasn't allowed a run since being traded from the Nationals to the Tigers, logging a 19:3 K:BB across 14.1 innings. Tommy Kahnle and Tyler Holton should serve in a setup role for closer Will Vest. Parker Meadows (quadriceps) was activated from the 10-day injured list in a corresponding move.

The White Sox activated Altavilla (lat) from the 15-day injured list Friday.

Altavilla was sidelined for just over a month with a right lat strain but is ready to go after making four rehab appearances with Triple-A Charlotte. The veteran righty had been seeing some high-leverage usage before getting hurt but could be eased back into such situations.

The Twins outrighted Davis to Triple-A St. Paul on Friday.

The transaction clears 26-man and 40-man roster spots for the return of Pablo Lopez (shoulder) from the 60-day injured list. Davis has surrendered a whopping 24 runs (22 earned) over 11 innings at the big-league level this season between the Dodgers and Twins.

Fairbanks allowed two earned runs on two hits and struck out one across one inning Thursday against the Guardians.

Fairbanks entered the game in the ninth inning with a four-run lead and gave up home runs to the first two batters he faced. He settled in to help the Rays secure the win, but his performance has been a mixed bag lately. Fairbanks has an impressive 23:0 K:BB across his last 16.1 innings, but he's allowed six home runs (3.3 HR/9) in that span.

Seymour will work as a bulk reliever behind opening pitcher Grffin Jax in Friday's game against the Guardians, Marc Topkin of the Tampa Bay Times reports.

Seymour worked as a multi-inning reliever to begin his major-league tenure but has made traditional starts in both of his last two appearances. He'll likely take over in the second or third inning of Friday's game once Jax exits the contest and will be the Rays pitcher most likely to factor into any decision. As a traditional starter, Seymour has allowed one earned run with a 16:2 K:BB across 10 innings.

Sewald (shoulder) began a rehab assignment with High-A West Michigan on Thursday, Emily Waldon of Baseball America reports.

Sewald landed on the injured list in mid-July and has been throwing for around a month. Due to his long layoff, he may need to make several rehab appearances before being activated.

Jax will serve as the Rays' opening pitcher in Friday's game against the Guardians, Marc Topkin of the Tampa Bay Times reports.

Jax has worked primarily in high-leverage spots all season, and that has continued since he joined the Rays at the trade deadline. However, he's struggled to a 7.20 ERA and 1.80 WHIP across 10 innings with Tampa Bay, so working as an opener could prove to be a bit of a reset for the right-hander. Jax will likely only work an inning or two before giving way to Ian Seymour, who is expected to work in bulk relief.

Estevez allowed a hit and struck out two in a scoreless inning to earn the save in Thursday's 4-3 win over the Angels.

Estevez has allowed just two hits while racking up nine strikeouts during his eight-inning scoreless streak. He's earned seven saves in that span and continues to lead the majors with 37 saves on the year. He's added a 2.54 ERA, 1.06 WHIP and 52:20 K:BB through 60.1 innings this season and is unlikely to be challenged for the closing role during September.

Martin cleared waivers Thursday and was sent outright to Triple-A Norfolk, Jake Rill of MLB.com reports.

Martin will officially stick in the Orioles organization after being designated for assignment Tuesday. He'll provide the club with organizational bullpen depth at Norfolk, but after putting up a 5.29 ERA and 1.40 WHIP through 32.1 innings in the minors, he's unlikely to get another opportunity with the O's this year.