Carlos Rodon left Monday's game with what he called "normal soreness" and said he didn't think it would impact his immediate future while Tony La Russa expressed "concern" over his short outing.
"He lost command," La Russa said. "He was struggling. Actually fortunate to only give up three runs. He came back in and said he wasn't right."
Rodon, 28, threw 69 pitches over three innings, giving up three runs in the third for the Chicago White Sox against the Detroit Tigers.
"Disappointed in myself to go out there and give up three runs when they put up three runs for me," he said. "That's a shutdown inning and that's on me. Honestly, it's pretty s---ty."