Peavy came out of his start for Triple-A Charlotte on Saturday after experiencing soreness in the fourth inning. His goal was to throw 100 pitches, but he lasted just 3 1/3 innings, throwing 68 pitches.
Peavy took a liner off his pitching elbow during a rehab start on Aug. 24 and had swelling and soreness.
Peavy made only 13 starts for the Padres this year before an ankle injury landed him on the disabled list. The White Sox acquired him at the trade deadline, and he had been on track for his Chicago debut last week before being hit by the line drive.
Zokora targets Sevilla gloryChicago White Sox right-hander Jake Peavy will throw a side session Thursday
