The Angels designated Petersen for assignment Monday.

The transaction frees up a 40-man roster spot for Jake Eder, who was acquired via trade Monday. Petersen, 30, has made 16 relief appearances at the major-league level, collecting a 5.95 ERA and 14:11 K:BB over 19.2 innings.

Little worked a perfect seventh inning Sunday to record his first hold of the season in a win over the Orioles.

The 28-year-old left Friday's appearance with cramping in his left lat, but Little looked just fine a couple days later. He's been deployed as the top left-hander in the Blue Jays bullpen in the early going, a role which could lead to a significant holds total after he picked up eight over 49 appearances in 2024.

Gilbert (knee) has been cleared to begin a rehab assignment with Triple-A Charlotte, Scott Merkin of MLB.com reports.

Gilbert began the season on the injured list with left knee bursitis but is ready to pitch in games again. He is eligible for activation April 11 and should be ready to serve in a long relief role at that time, barring setbacks.

Orioles manager Brandon Hyde said Monday that he's hopeful Suarez's (shoulder) stint on the 15-day injured list won't be long, Andy Kostka of TheBaltimoreBanner.com reports.

Hyde revealed that Suarez first began experiencing right shoulder discomfort toward the end of spring training and was having trouble getting loose, necessitating placement on the IL Sunday. Suarez is receiving treatment and it sounds like he could be back when first eligible or close to it.

The Twins designated Dobnak for assignment Monday, Bobby Nightengale of The Minnesota Star Tribune reports.

Dobnak tossed a bullpen-saving 5.1 innings of one-run ball in relief of an ineffective Bailey Ober in Sunday's loss to the Cardinals. His reward is an exit from the 26-man active roster and 40-man roster in favor of a fresh arm in Darren McCaughan, who was called up from Triple-A St. Paul.

Altavilla re-signed Sunday with the White Sox on a minor-league contract.

Chicago granted Altavilla his release last Tuesday after informing him he wouldn't be included on the Opening Day roster, and after briefly exploring his options in free agency, the right-hander ultimately decided to return to the White Sox organization. He reported to Triple-A Charlotte and struck out a batter over 1.2 perfect innings of relief Sunday in the affiliate's 9-6 win over Gwinnett.

Hendriks (elbow) resumed playing catch Sunday, Jen McCaffrey of The Athletic reports.

Hendriks received a cortisone shot Thursday and said he feels much better. He said the shot loosened the tension in what he called a compressed nerve. The right-hander believes he can return from the 15-day injured list around when he's first eligible April 8, but manager Alex Cora said that the Red Sox will not skip any steps in the rehab process for Hendriks, who didn't pitch for the big club and was limited to six minor-league appearances while finishing up his recovery from Tommy John surgery.

Jackson allowed a hit and a walk during a scoreless inning against Boston on Sunday. He struck out one and earned a save.

Jackson retired the first two batters he faced on just five pitches. He then coughed up a double to Jarren Duran and walked Rafael Devers before striking out Alex Bregman to close out the 3-2 victory. Jackson was roughed up in his first appearance, allowing three runs while recording only one out and taking a loss Thursday. Rangers manager Bruce Bochy showed confidence in Jackson by throwing him in save situations Friday and Sunday. Jackson converted both, leading to a 3-1 series win for Texas.

Schreiber allowed one run on two hits while striking out two over 1.1 innings Sunday against the Guardians.

Schreiber saw his strikeout rate dip to 20.5 percent in 2024 in his first year in Kansas City but remained useful with a 3.66 ERA and 1.32 WHIP over 51.2 regular-season innings. He could be a nice source of holds (24 last year) ahead of Lucas Erceg and Carlos Estevez in the bullpen.

Stratton allowed two runs on three hits and two walks with no strikeouts over 1.2 innings Sunday against Cleveland.

Stratton's season ended in mid-September due to a forearm injury, but he was healthy in spring training. He was unimpressive last season with a 5.55 ERA, 17.1 percent K rate and 12.8 percent walk rate but was a consistent part of the middle-relief corps. A slow start to the season won't help him find higher-leverage usage.