The White Sox signed Alexander to a one-year, $760,000 contract Sunday.

Alexander was DFA'd by Milwaukee last Sunday and elected free agency after clearing waivers. He struggled during his tenure with the Brewers, posting a 6.19 ERA, 1.49 WHIP and 30:12 K:BB over 36.1 innings while picking up a hold, a save and a 3-5 record. Alexander can serve in a swingman role, as he made four starts earlier this season, including a start against Cincinnati on April 4 during which he tossed 5.2 hitless innings. In corresponding roster moves Sunday, Jared Shuster landed on the 15-day IL due to a blister, and Fraser Ellard was transferred to the 60-day injured list.

The Athletics designated Duran for assignment Sunday.

The 23-year-old was designated for assignment to clear a roster spot for catcher Austin Wynns. Duran, acquired from the Dodgers on April 2, made just one appearance in the majors, allowing three runs in one-third of an inning. His struggles have continued at Triple-A Las Vegas, where he's posted an 8.00 ERA and 1.96 WHIP over 27 innings.

Baltimore activated Blewett in advance of Sunday's matchup versus the Athletics.

After the Orioles traded Blewett to Atlanta in late April, the teams engaged in another trade Friday to send the right-hander back to Baltimore. In a corresponding move to Blewett's activation, Matt Bowman was designated for assignment.

The Orioles designated Bowman for assignment Sunday.

Bowman was previously DFA'd in early May, but he was brought back onto the 40-man roster May 28 and made two appearances out of the bullpen, allowing one run while posting a 4:2 K:BB over 4.1 innings. He's now a roster casualty again with Baltimore activating recent trade acquisition Scott Blewett.

Detmers earned a hold against Seattle on Saturday, allowing one hit and striking out two batters over one scoreless inning.

Detmers handled the seventh frame with the Angels up by two runs. The left-hander began the campaign working in a lower-leverage role and had a 10.05 ERA with no holds or saves through his first 12 appearances, but since then he's turned things around, surrendering just one run over his last 12 outings covering 13 innings while posting a 19:7 K:BB. He's become one of the Angels' top high-leverage options, picking up six holds and one save across his past nine appearances.

Martin struck out one over a scoreless ninth inning in Saturday's 5-0 win over Washington.

Martin made his first appearance since being activated off the 15-day injured list Thursday. It was a low-leverage reintegration back to the bullpen, but Martin will be part of the Rangers' late-inning relief crew.

The Twins reinstated Coulombe (forearm) from the 15-day injured list Sunday.

Minnesota cleared a spot for Coulombe on the 26-man roster by moving Zebby Matthews (shoulder) to the injured list. Though Jhoan Duran maintains a firm grip on the Twins' closing gig, Coulombe had been a sneaky source of fantasy value in his setup role prior to landing on the shelf May 18 due to an extensor strain in his left forearm. In addition to scooping up two saves, two holds and one win in 19 appearances, Coulombe has yet to allow a run this season with 19 strikeouts over 16.2 innings.

Sewald (shoulder) threw a bullpen session Saturday featuring fastballs only, MLB.com reports.

Sewald was added to the 15-day injured list in late April, and a few days later, manager Stephen Vogt said the right-hander would be out "a while." Sewald's been getting weekly checkups, and it appears he's ready to ramp up. He'll need to check the usual boxes before returning to the Guardians by throwing all his pitches in bullpen sessions before facing live hitters and then heading out on a rehab assignment.

The Rays optioned Sulser to Triple-A Durham on Sunday, Marc Topkin of the Tampa Bay Times reports.

The right-hander hadn't given up a run in his past six appearances but will still be sent down in favor of Ian Seymour, who can provide a bit more length out of the bullpen. Sulser's 3.09 ERA and 1.20 WHIP through 10 big-league outings this season should be enough for him to get another look with Tampa Bay later this season.

Yarbrough (3-1) took the loss against Boston on Saturday, allowing eight runs on nine hits and two walks while striking out three batters over four innings.

Yarbrough entered Saturday having tossed two straight quality starts and having posted a minuscule 1.76 ERA across his previous 30.2 innings, but he couldn't keep up that momentum against the Red Sox. The left-hander was doomed by a five-run Boston third inning. Yarbrough's season ERA jumped from 2.83 all the way up to 4.17 as a result of the poor outing, and the loss was his first of the campaign. He'll try to bounce back in his next start, which is tentatively slated to be a rematch against Boston, this time on the road.