Brebbia was removed from Friday's game against the Royals with an apparent injury, LaMond Pope of the Chicago Tribune reports.
Brebbia looked uncomfortable on the mound after fielding a comebacker during the the sixth inning, and he was pulled from the game after throwing a few warmup pitches in front of trainers. It's not immediately apparent what is bothering the 33-year-old right-hander, who is expected to be part of the late-inning mix for the White Sox this season.