The Boston Red Sox have placed right-handed starting pitcher John Lackey on the 15-day disabled list with a strained biceps, the team has announced.
More Red Sox: Lackey to DL
There's no clear time frame for Lackey's potential return, as the severity of the injury is still being determined. Whatever the case, the veteran is expected to miss at least a few starts, so a move to the DL was expected.
Lackey suffered his injury Saturday, when he was removed after logging just 4 1/3 innings of work. It marked his first start since 2011, as he missed all of last year after undergoing Tommy John surgery.
The Red Sox have moved right-hander Alfredo Aceves out of the bullpen and into the starting rotation to replace Lackey. He is set to take the mound Thursday night against the Baltimore Orioles, with Felix Doubront sliding back one day to pitch Friday.
Aceves was called upon after Lackey's early exit, and the veteran logged 3 1/3 innings of relief. He entered the year as Boston's swing man, and he's been used as a spot starter in the past.