The Astros transferred Wesneski (elbow) to the 60-day injured list Monday, Chandler Rome of The Athletic reports.

The Astros needed the spot on the 40-man roster for reliever Cody Bolton, who had his contract selected from Triple-A Sugar Land in a corresponding move. Wesneski is still working his way back from last May's Tommy John surgery.

The Astros selected Bolton's contract from Triple-A Sugar Land on Monday, Chandler Rome of The Athletic reports.

To make room on the 40-man roster for Bolton, the Astros shifted Hayden Wesneski (elbow) to the 60-day injured list. Bolton has 34 games of major-league experience, all out of the bullpen, and has a career 5.79 ERA, 1.81 WHIP and 40:24 K:BB across 42 innings.

Kittredge (shoulder) will begin a rehab assignment with Triple-A Norfolk on Wednesday, Jake Rill of MLB.com reports.

The right-hander developed inflammation in his right shoulder earlier this month, but it sounds like his stay on the 15-day injured list will be short if he avoids setbacks while out on assignment. Once healthy, Kittredge figures to occupy a top spot in the bullpen as a setup man ahead of closer Ryan Helsley.

Estevez (ankle) is likely to remain unavailable to pitch in Monday's game versus the Twins and will be evaluated for a possible stint on the injured list, Anne Rogers of MLB.com reports.

Estevez is still sporting a walking boot on his left foot as he recovers from an ankle contusion that he suffered when struck by a line drive Saturday. X-rays came back negative, but the Royals will consider an IL stint for Estevez if he hasn't made enough improvement following Tuesday's off day. Between the ankle injury and declining velocity that dates back to spring training, Estevez's standing as the Royals' closer is on shaky ground. Lucas Erceg notched a save for Kansas City in Sunday's win over Atlanta but could be unavailable Monday since he's pitched back-to-back days. Matt Strahm has also pitched each of the previous two days, so the Royals might have limited bullpen options Monday.

Schultz (elbow) struck out two and allowed no hits and one walk over 1.2 scoreless innings in his first rehab appearance Saturday for Triple-A Rochester.

The appearance was Schultz's first since Feb. 28, after he had missed the final three weeks of the Grapefruit League due to right elbow inflammation. The 28-year-old will likely make at least another rehab appearance or two before returning from the injured list. While the Nationals will likely use him in lower-leverage spots initially once he's activated, Schultz could quickly move his way into a more prominent role if he pitches well early on, given the lack of established options in the bullpen.

De Los Santos (knee) has tossed 2.1 scoreless innings while striking out one and allowing no hits or walks in two appearances for Triple-A Sugar Land since starting a rehab assignment Friday.

Through two appearances, the only blemish on De Los Santos' ledger has been a hit batsman, which came during his most recent outing Sunday. The right-hander opened the season on the shelf after he was out for most of spring training while recovering from a right knee strain, but he looks like he could soon be ready to rejoin the Houston bullpen. De Los Santos will be eligible for reinstatement from the injured list next week.

Brasier re-signed Friday with the Rangers on a minor-league contract.

Texas had previously released Brasier on March 21 after he failed to secure a spot in the club's Opening Day roster, but after assessing his options as a free agent, he ultimately chose to stick around in the organization on another minor-league pact. The 38-year-old righty reported to Triple-A Round Rock and debuted for the affiliate Sunday, striking out one batter over 1.1 scoreless innings of relief.

Criswell earned the save in Sunday's 8-0 win over the Guardians, allowing two hits while striking out five over three scoreless innings.

Criswell was sharp Sunday, limiting the Guardians to a pair of singles to close out Seattle's shutout victory, earning his second career save. The 29-year-old Criswell made the team as a long-relief option after posting a 2.51 ERA across 14.1 innings in spring training. While he may have a defined role in the Mariners' bullpen, don't expect Criswell to be a frequent source of saves. The right-hander has a career ERA of 4.42 with a 1.42 WHIP across 158.2 major-league innings.

Abreu allowed one run on two walks in one-third of an inning during the Astros' 9-7 win over the Angels on Sunday.

Abreu was brought in for the top of the ninth inning to protect the Astros' three-run lead. However, he walked two of the first three batters he faced and was replaced by Bryan King, and the former was tagged with a run on an RBI single from Nolan Schanuel. Abreu has yielded four earned runs on four walks and one hit across 1.1 innings to open the season, which isn't a great sign given that he was tabbed as the Astros' interim closer in the absence of Josh Hader (biceps). King could be thrust into closing situations if Abreu's early struggles continue.

Alexander earned a save after tossing one inning, allowing an unearned run on one hit and a hit-by-pitch while striking out a batter in Saturday's 5-4 extra-inning win over the Phillies.

Alexander was the next man up after Texas turned to Robert Garcia and Chris Martin in the ninth inning. Alexander hit Otto Kemp with an 84.8-mph cutter to open the frame before later surrendering a two-out single to Bryce Harper, which drove in the automatic runner from second base. The southpaw was then able to settle in and strand Kemp at third base to end the game by getting Alec Bohm to pop up for the final out. Alexander isn't necessarily in the mix quite yet for the closer's role, but he is the first Ranger to notch a save in 2026.