"Jake Peavy has no regrets about trying to pitch Sunday against the Tigers with a tight right groin that developed into a mild strain that he said Tuesday will land him on the 15-day disabled list.

"Let me tell you something: If guys didn't go out on the field because of something nagging, you wouldn't be able to put nine guys out there tonight," Peavy said after being examined by doctors and talking to general manager Ken Williams. "There are plenty of guys fighting with something and (they) have been in there with me getting treatment and just trying to weather the storm."

The Sox will revert to a five-man rotation, with John Danks moving up to take Peavy's start Saturday night against the A's.

Peavy, meanwhile, hopes he will miss only two starts and avoid having to make a minor league rehabilitation start."