clottey lost against cotto and Margarito for the same reason he lost against pac, he moslyt blocks and dosent throw alot of punches, its just that pac is better then margo and cotto so clottey never had a chance. and clottey at times chased pac and was the aggressor (pac was trying to lure him in) but he didnt let his hands go cuz pac had too much speed. pac dosent have the one punch ko power to put out clottey with one shot but he had the speed to completely overwhelm clottey. had clottey let his hands go, he would have gotten tko'd. so he did the best he could. the fight only proved two things that you were suppose to know before hand. pac is the 1 fighter in the world and clottey is a tough but a B level fighter.