The Tigers optioned Hanifee to Triple-A Toledo on Tuesday, Cody Stavenhagen of The Athletic reports.

Hanifee pitched 1.1 innings during the Tigers' loss to Milwaukee on Tuesday, surrendering two unearned runs on three hits and a walk. He now owns a 2.25 ERA and 1.13 WHIP through eight innings, but he'll end up as the roster casualty needed to make room for Keider Montero, who will be promoted to start Wednesday's contest.

Stewart began a rehab start at Single-A Fort Myers on Tuesday, Dan Hayes of The Athletic reports.

Stewart experienced a setback in his recovery from a left hamstring strain earlier this month, but he now seems to have bounced back and has the green light to test his hamstring in a competitive setting. The Twins haven't said how long they plan on keeping the 33-year-old reliever in the minors, though a return date may be set once he makes a few rehab outings.

The Astros recalled Hernandez from Triple-A Sugar Land on Tuesday, Matt Kawahara of the Houston Chronicle reports.

The Astros optioned Luis Contreras to Triple-A in a corresponding move. Hernandez has tossed seven innings in the minors this season, logging a 7:2 K:BB and a 1.29 ERA. He'll provide Houston depth out of the bullpen after Contreras threw 35 pitches in relief Monday.

The Astros optioned Contreras to Triple-A Sugar Land on Tuesday, Matt Kawahara of the Houston Chronicle reports.

Contreras threw 35 pitches across two innings of relief Monday against the Cardinals. On the season, he has a 9.00 ERA and 10:6 K:BB in nine innings of work. In a corresponding move, the Astros recalled fellow right-handed reliever Nick Hernandez.

Orioles GM Mike Elias said Tuesday that Kittredge (knee) could be back by the end of May, Andy Kostka of TheBaltimoreBanner.com reports.

Kittredge threw his first mound session over the weekend and seems to be flying through his return from arthroscopic knee surgery. The veteran right-hander could face live batters in about two weeks. Kittredge had originally been given a June/July timeframe for his recovery.

The Orioles optioned Selby to Triple-A Norfolk on Tuesday.

The transaction frees a spot on the active roster for waiver claim Scott Blewett. Selby made one appearance during his brief stint with the big club, allowing two runs over an inning of work.

Brash (elbow) began a minor-league rehab assignment with Triple-A Tacoma on Sunday, Daniel Kramer of MLB.com reports.

Brash threw 19 pitches during the outing, allowing one hit while striking out one in one inning of work. It marked the start of Brash's final steps before rejoining the Mariners' bullpen, which he should be able to do in late April or early May following several appearances in the minors. After missing all of last year due to Tommy John surgery, the hard-throwing right-hander figures to be eased back into action as a middle reliever before eventually becoming a setup man for closer Andres Munoz at some point.

Williams allowed a hit and a walk in a scoreless inning while earning a save against the Royals on Monday.

Williams entered the ninth inning with a 4-1 lead and had to work out of a jam to close things out. He put two runners on base with one out but escaped unscathed with his first save since March 27. Through six appearances as a Yankee, Williams has yet to deliver a perfect inning out of the bullpen. He owns an uncharacteristic 7.20 ERA with a 7:6 K:BB through five innings.

Perdomo was outrighted to Triple-A Sacramento on Monday.

Perdomo was designated for assignment by the A's on Saturday and he cleared waivers. The left-hander has appeared in four games with the Athletics this season, surrendering two runs on two hits and three walks while striking out two batters over 3.1 innings.

Dubin (shoulder) will begin a rehab assignment with Triple-A Sugar Land this weekend, Chandler Rome of The Athletic reports.

Dubin threw a successful live batting practice session Monday, clearing the way for him to pitch in rehab games. The reliever missed the entirety of spring training with his shoulder issue, so he'll likely need at least a handful of rehab appearances before being activated from the 15-day injured list.