Boston Red Sox ace Chris Sale, who came off the disabled list last Sunday, has returned to the 10-day DL with left shoulder inflammation, the team announced Saturday.
The move was retoactive to Wednesday.
Last Sunday, Sale, making his first start in two weeks, had 12 strikeouts in five innings against the Baltimore Orioles.
Sale, 29, is 12-4 with an American League-best 1.97 ERA and 219 strikeouts.
To fill his spot on the roster, the Red Sox recalled reliever Brandon Workman from Triple-A Pawtucket.