The White Sox have scratched Jake Peavy from his scheduled start on Thursday against the Pirates because of an aching right shoulder. "I have some fluid in there," Peavy said. "Obviously it's getting treated hard, and we've been doing all we can do. The shoulder doesn't want to push it out. It has been getting progressively worse. (But) I feel good about getting out there this weekend." Peavy said he has had the discomfort "for a while," but has pitched through it.