Thiago Alves Off UFC 111 Card Due To Brain Irregularity; Jon Fitch Left Without Opponent

UFC’s Thiago “Pitbull” Alves will not fight at Saturday’s UFC 111, because a CAT Scan shows an irregularity in his brain … TMZ has learned.

UFC honcho Dana White tells TMZ he will fly Pitbull to a specialist for further evaluation. White says, “If it’s true, it can be career-ending.”

This is the second time that the rematch between Fitch and Alves has been canceled, with the first coming back at UFC 107 when Alves injured his knee in training.