The Red Sox optioned Uberstine to Triple-A Worcester on Monday.

Uberstine was unlikely to be available to pitch for another day or two after tossing 2.2 innings and 45 pitches in relief during Sunday's loss to the Padres, so the Red Sox will send him back to the minors to clear room on the active roster for right-hander Garrett Whitlock (personal), who was reinstated from the paternity list. Once he's back in Worcester, Uberstine will likely settle back into the rotation after making his MLB debut out of the bullpen.

Double-A Chesapeake placed Watts-Brown on the 7-day injured list April 2 with a shoulder injury, Jonathan Mayo of MLB Pipeline reports.

The 24-year-old righty came over from Toronto for Seranthony Dominguez at last year's trade deadline. Watts-Brown has a 3.62 ERA, 1.10 WHIP and 96:38 K:BB in 87 innings at Double-A.

The Orioles recalled Young from Triple-A Norfolk on Monday.

Young will be the starting pitcher for Monday's game against the White Sox, filling in for the injured Zach Eflin (elbow). The right-hander really struggled in 12 starts for the Orioles in 2025, finishing with a 6.24 ERA and 47:22 K:BB over 57.2 innings. Young could earn an additional start this weekend against the Giants if he pitches well, though Dean Kremer is a likelier option to fill that slot.

Povich covered 5.2 innings out of the bullpen in Sunday's 8-2 loss to the Pirates, taking a no-decision while striking out two batters and allowing two earned runs on four hits and three walks.

With starter Chris Bassitt getting chased from the game after allowing six runs over two innings, Povich -- who had been called up from Triple-A Norfolk -- was tasked with mopping up in the series finale in Pittsburgh. The young lefty was able to eat some innings and spare the bullpen from overuse, but the extended relief appearance will take him out of the running to fill the open spot in the Baltimore rotation that was created by Zach Eflin's (elbow) recent move to the injured list. Albert Suarez could be the leading candidate to replace Eflin in Monday's game against the White Sox, either as a starter or primary pitcher out of the bullpen.

Uberstine (0-1) was the pitcher of record in Sunday's 8-6 loss to the Padres after allowing one run on three hits and one walk while striking out two over 2.2 innings of relief.

Uberstine made his MLB debut and pitched two scoreless innings before Jackson Merrill drove a fastball over the fence to lead off the eighth. The right-hander also walked a batter and gave up a double later in the frame. Overall, Uberstine threw the ball well and filled up the zone (45 pitches, 34 strikes), but the mistake pitch to Merrill proved to be costly. Uberstine, who had been used as a starter in the minor leagues, is expected to provide length out of the bullpen while he's up in the majors.

Sandoval (elbow) did not make his scheduled rehab start for Double-A Portland on Sunday, because the game was postponed due to weather, Christopher Smith of MassLive.com reports. The left-hander will now start Wednesday for Triple-A Worcester.

Sandoval is returning from an internal brace procedure that he underwent in 2024 and prevented him from pitching in 2025. The Red Sox will eventually need to decide on a role for Sandoval. Connolly Early is currently the fifth member of the team's rotation, and it's possible that Sandoval works as a long reliever.

Montero (0-1) took the loss Sunday against the Cardinals, allowing three runs (two earned) on three hits and one walk while striking out three over 4.1 innings.

Making his first start of the season in place of Justin Verlander (hip), Montero was sharp early, retiring 12 of the first 13 batters he faced and holding St. Louis scoreless through four innings. The right-hander ran into trouble in the fifth however, allowing three baserunners, including an RBI single from Pedro Pages that ended his outing. Both inherited runners eventually came around to score, accounting for his final line. Sunday's strong start was an encouraging sign for Montero after he posted a 4.37 ERA and 1.39 WHIP with 72 strikeouts across 90.2 innings in 2025 and he'll look to build on the early success in his next outing against a Miami lineup that has started the season swinging well.

Klassen didn't factor into the decision, allowing two runs on three hits and five walks while striking out four over 2.2 innings Sunday against the Mariners.

Making the start on short notice, Klassen's debut was a mixed bag, with him flashing electric stuff but struggling with command and exiting early. The 24-year-old picked up his first career strikeout in a big spot, fanning Julio Rodriguez with a runner on third to escape the first inning. However, Seattle's patience forced him into a long second inning, where he allowed a two-run single before limiting further damage with another punchout. The right-hander's outing ended in the third after a bunt single and wild pitch put another runner in scoring position. Klassen's fastball (97-98 mph) and hard slider (92 mph) highlight his upside, but sharper control will be necessary for him to stick in a starting role anytime soon.

Castillo did not factor into the decision Sunday against the Angels, allowing four runs (three earned) on six hits and one walk while striking out four over 3.2 innings.

Castillo couldn't find a rhythm in this one, allowing at least two baserunners in every inning he worked and exiting before completing four frames for the first time since 2024. The right-hander ran into trouble immediately, allowing a leadoff double to Zach Neto before Jorge Soler brought him home with an RBI single, and the outing didn't improve much from there. Unlike his dominant Opening Day outing in which he tossed six scoreless innings with seven strikeouts, Castillo failed to fool hitters Sunday and was consistently pitching under pressure. The 33-year-old will look to bounce back in his next scheduled start against Houston, though it presents a tough test against one of the league's most productive offenses early in 2026.

McCullers (1-0) didn't factor into the decision Sunday against the Athletics, allowing three runs on five hits and three walks with four strikeouts across four innings.

McCullers opened the game with four scoreless innings but allowed the first three batters to reach base to begin the fifth and was yanked in favor of Steven Okert, who allowed his two inherited runners to score on a bases-loaded triple by Tyler Soderstrom. McCullers will bring a 3.27 ERA and 13:4 K:BB across 11 innings into his next start Saturday on the road against the Mariners.