Chris Canty reacts to Bengals rookie Shemar Stewart leaving the team's minicamp and doesn't understand what Cincinnati is trying to prove. (1:36)Open Extended ReactionsCINCINNATI -- Bengals rookie defensive end Shemar Stewart left Cincinnati's mandatory minicamp Thursday amid a contract dispute. Stewart, the Bengals' first-round draft selection, has not participated in any of the team's offseason workouts. According to a source, the dispute is centered on interpretation of language in the contract that could affect guaranteed money. Stewart isn't the only Bengals pass rusher trying to iron out a contract situation.