Chris Withrow hasn't pitched in eight days due to an undisclosed injury. Withrow was optioned to Triple-A Albuquerque on May 21 but has yet to make an appearance there. "There's some stuff going on. I don't know what they're willing to release at this point," Dodgers manager Don Mattingly said Wednesday. "I know medical is getting to the point where they'll release something." We'll have an answer soon.