Finnegan (groin) will begin a rehab assignment with Triple-A Toledo on Thursday, Chris McCosky of The Detroit News reports.

Finnegan has missed most of September with a right adductor strain but has been cleared to test things out in a game setting. Given his brief absence, it could be the only rehab appearance Finnegan needs before returning to the Tigers' active roster. He's made 12 scoreless appearances and recorded four saves since being acquired by Detroit at the trade deadline.

Red Sox manager Alex Cora said that Harrison will start Saturday's game against the Rays in Tampa, Jen McCaffrey of The Athletic reports.

Harrison will move into the rotation as a replacement for rookie lefty Payton Tolle, whom Cora said would be used in the bullpen for the remainder of the season. After getting called up from Triple-A Worcester last week, Harrison made his Red Sox debut out of the bullpen Sept. 10 in Sacramento, striking out two over three scoreless innings. Though he had been serving in a starting role for Worcester, Harrison hadn't covered five frames in an outing since Aug. 19, so the Red Sox may not be counting on the lefty working deep into his start Saturday.

The Royals optioned Avila to Triple-A Omaha on Wednesday.

He's being sent down in order to clear a spot on the active roster for the return of Cole Ragans (shoulder) from the 60-day injured list. Avila has allowed just one run with an 11:4 K:BB over 9.1 frames with the big club, but having minor-league options remaining worked against him.

White Sox general manager Chris Getz said Wednesday that he expects Vasil to remain in the bullpen next season, Scott Merkin of MLB.com reports.

Vasil was a starter throughout his time in the minors with the Mets before the White Sox plucked him in the Rule 5 Draft last offseason, so he'd be capable of getting stretched out. However, Getz and the White Sox like the versatility Vasil provides in the bullpen, with his ability to eat multiple innings and appear in high-leverage situations, depending on what is needed. Vasil has posted a 2.45 ERA, 1.22 WHIP and 77:47 K:BB over 95.2 innings, picking up five wins, four saves and two holds along the way.

The Rays optioned Gerber to Triple-A Durham on Wednesday, Ryan Bass of FanDuel Sports Network Sun reports.

Gerber pitched well in two relief outings for the Rays, allowing one run with a 4:0 K:BB across 4.1 frames. He's being replaced by a fresh bullpen arm, as the Rays have summoned Cole Wilcox from Triple-A Durham in a corresponding move.

Smith (7-5) blew the save but picked up the win Tuesday, striking out two and giving up a solo home run in the ninth inning of a 7-5 extra-inning victory over the Tigers.

Called in to protect a 3-2 lead, Smith instead served up a game-tying homer to Kerry Carpenter, only for the Cleveland offense to erupt for four runs in the top of the 10th. It's the right-hander's first blown save since Aug. 22, ending a streak of eight straight successful conversions, and since taking over the closer role in late July he's posted a 3.38 ERA, 0.88 WHIP and eye-popping 33:2 K:BB in 24 innings while securing 12 of 16 save chances.

Cantillo didn't factor into the decision in Tuesday's 7-5 extra-inning win over the Tigers, allowing one run on four hits and two walks over five innings. He struck out three.

The southpaw left the mound with the Guardians clinging to a 2-1 lead, but both bullpens struggled before the game was eventually decided in the 10th. Cantillo has given up one run or fewer in five straight starts, posting a stellar 1.21 ERA, 1.04 WHIP and 23:10 K:BB over his last 29.2 innings. He's scheduled to make his next start on the road this weekend in Minnesota.

Harris logged a scoreless appearance while allowing one hit over 1.1 innings to pick up the save over the Red Sox on Tuesday. He did not strike out or walk a batter in the process.

Harris entered with a man on first and two outs in the eighth to face lefty Jarren Duran and was able to get out of the inning by picking off Nick Sogard. Hogan would allow a base knock in the ninth but closed out the game by inducing a double play. Dating back to Aug. 9, Harris has allowed just one run over 16.2 innings and has picked up three saves and two holds. The Athletics' closer job still remains a committee, however, between Harris, Sean Newcomb and even Michael Kelly, who just picked up his first career save Sunday.

Vest (6-4) allowed four runs (three earned) on five hits across an inning of relief to take the loss in Tuesday's 7-5, 10-inning defeat to the Guardians.

After the Tigers forced extra innings on a Kerry Carpenter solo home run in the bottom of the ninth, Vest was tapped for the top of the 10th, and he ran into trouble right away. The veteran righty started the frame by allowing three doubles and a triple before recording any outs, giving Cleveland three quick runs. Vest had rattled off five straight scoreless appearances before Tuesday, and his ERA is still a tidy 2.91 overall, so the Detroit closer should be able to move past the rough performance and get back on track soon.

Bednar picked up the save Tuesday against the Twins. He allowed a solo homer while striking out one over an inning.

The right-hander surrendered a deep shot to Trevor Larnach with one out in the ninth inning but settled in to retire the next two batters, locking down a Yankees win and his 25th save. Since arriving at the deadline, Bednar has been solid in pinstripes, compiling a 2.75 ERA, 0.97 WHIP, eight saves, three wins and three blown saves across 17 outings.