The Tigers recalled Brieske from Triple-A Toledo on Monday.

Brieske has spent all of 2024 at Toledo, holding a 2.95 ERA and 22:11 K:BB over 21.2 frames. The right-hander has been used exclusively in relief for the first time this season but has gone multiple innings in eight of his 13 appearances, so he could offer some length to Detroit's bullpen.

The Tigers placed Miller on the 15-day injured list Monday with right ulnar nerve inflammation.

It's unclear how long the elbow issue might have been bothering Miller, but it could help explain his struggles lately -- he's allowing five earned runs over his last three innings. Miller will be eligible to return from the IL later this month.

The Athletics recalled Lucas from Triple-A Las Vegas on Monday.

Lucas has allowed three runs over 2.1 relief innings during his brief time in the majors this season. He's been much more effective this season at Las Vegas, holding a 2.87 ERA and 13:8 K:BB in 15.2 innings. Lucas will provide a left-handed relief option for the Athletics.

The Orioles claimed Martin off waivers from the Brewers on Monday and optioned him to Triple-A Norfolk, Dan Connolly of The Athletic reports.

Martin missed the 2023 season following lat surgery, and all nine of his 2024 appearances have come at the Triple-A level, where he's posted a 7.20 ERA and 10:13 K:BB over 10 frames. The 28-year-old has previously worked mostly as a starter but has been used exclusively in relief this season.

Mata (hamstring) began a rehab assignment in the rookie-level Florida Complex League on Monday and struck out two over two innings while allowing one run on three hits and no walks.

The 25-year-old Mata has yet to make his big-league debut, but because he has no minor-league options remaining, he'll eventually join the Red Sox once he completes what will likely be a lengthy rehab assignment across multiple affiliates. Mata, who is working his way back from a right hamstring strain, has worked almost exclusively as a starter during his time in the minors, but he'll presumably be in store for a low-leverage, multi-inning role out of the Red Sox bullpen upon his return from the 15-day injured list.

Jimenez, who was optioned to Triple-A Las Vegas on Tuesday, fired two perfect innings with four strikeouts over his first two relief appearances with the Aviators on Friday and Sunday. He also recorded a save in the latter outing.

It's a small sample, but the decision to demote Jimenez after a couple of uneven outings earlier in May appears to have been a prudent one. The right-hander has breezed through his first pair of minor-league appearances, and if he continues on a similar track, Jimenez could soon find himself back on the big-league roster.

McArthur allowed a run on one hit and did not walk or strike out a batter over one inning to earn the save in Sunday's 4-2 win over the Angels.

McArthur was tagged for a solo home run by Willie Calhoun in the ninth inning, but the Royals' lead was never in real danger. Over 4.2 innings in May, McArthur has yielded six runs (five earned), with three of the eight hits he's allowed in that span leaving the yard. He's 9-for-12 in save opportunities while adding a hold, a 4.42 ERA and a 1.36 WHIP over 18.1 innings this season. The right-hander's shaky pitching of late hasn't cost him the closer job, but John Schreiber has been an excellent setup man and could take over if McArthur doesn't start locking things down.

Jansen picked up the save Sunday against Washington, allowing one hit and no walks over a scoreless ninth inning. He didn't log a strikeout.

Jansen got an assist from catcher Connor Wong, who ended the game by throwing out Jacob Young during an attempted steal of second base. The 36-year-old has converted on seven of his eight save chances, owning a 2.63 ERA with 19 strikeouts over 13.2 innings.

Urena (1-3) allowed two runs on six hits and a walk while striking out three over 6.2 innings, but he took the loss Sunday versus the Rockies.

Urena pitched well, especially given the unfriendly venue, in his second start of the campaign. He's allowed four runs (three earned) with a 5:3 K:BB over 11.2 innings across two starts since moving into the rotation. Urena has a 3.62 ERA, 1.24 WHIP and 21:12 K:BB over 32.1 innings across 12 appearances this season, though he began the year as a long reliever. If Nathan Eovaldi (groin) can return when first eligible May 18, Urena will likely return to the bullpen. A pair of off days (Thursday and Monday, May 20) could also allow the Rangers to get by with a four-man rotation temporarily, though Urena's pitched well enough that it wouldn't be odd to see him get another start.

Kahnle (shoulder) tossed a perfect inning in a rehab appearance with Single-A Tampa on Saturday, striking out one batter.

Kahnle threw of 10 of 15 pitches for strikes in the appearance and got up to 95.5 mph with his sinker, per Conor Foley of YES Network. The veteran reliever has completed two of what is expected to be at least five rehab outings, pitching two perfect frames with three strikeouts thus far. If all goes well for Kahnle during the remainder of his rehab stint, he could join the major-league bullpen within the next two weeks.