I'm watching Margarito vs Cotto II right now, and seeing Margarito's eye starting to close after round 3 brought this to my mind. Since we have trainers that make their fighters dizzy during shadowboxing to simulate the state of being rocked, do you think there would be any value to having a fighter as susceptible as Marg was to eye damage do technical sparring with an eye patch on, to get accustomed to using peripheral vision and being aware of the opponent's left hand even when he can't see it that well? It sounds weird, but I have to wonder if anyone's ever done it. Margarito seems like the kind of guy for whom that might work. A normal fighter might be demoralized by the mere suggestion from his trainer that his eye will likely close up, but Margarito, in round 5, openly invites Cotto to target his eye. I don't think he'd be fazed by the training, so the practice might have helped him. What do you say, cockamamie, or intriguing?