Those ongoing issues for the right-hander could lead the White Sox to shut him down if they fall out of contention.
"Coming from me, when you hear a guy is tired, fatigued, well, if I know we're not going anywhere, then I will try to get him out of the rotation," White Sox manager Ozzie Guillen said. "If we're in, we need him. We need him to go out and perform."
"I'm excited to pitch. I want to continue to pitch," Peavy said. "I feel like I'm working through things. I know there has been some talk about wanting to shut me down, but at the same time, we are in the middle of a pennant race and I want to help."