The prized Red Sox prospect’s call up to Major League Baseball came after Alex Bregman hit the injured list with what manager Alex Cora called a significant quad injury. Bregman said it’s similar to the injury he suffered during the 2021 season that caused him to miss two months.

MLB player prop bets and odds for Boyce Cedric Mullins on Sunday, May 25, 2025, as the Baltimore Orioles take on the Boston Red Sox.

Trevor Rogers delivered a strong start in his season debut and the Orioles’ offense did just enough to salvage a doubleheader split.

Bregman roped a single to left field in the fifth inning, rounded first base, then immediately called for the trainer and exited the game with a slight limp. Bregman told reporters on Saturday that he felt worse than expected. He subsequently underwent an MRI before being placed on the shelf.

Over time, Saturday could be remembered as the day the Red Sox called up star prospect Marcelo Mayer from the minors. But the Sox still had business to take of as Mayer made his way from Worcester to Boston for the second game of Saturday’s doubleheader against the Orioles.

Instant reactions from the Red Sox’ 2-1 loss to Baltimore Orioles in Game 2 of a doubleheader Saturday at Fenway Park: