If Mayweather were to come back and actually take the fight, I think he would beat Margarito on points pretty comfortably- but NOT even come close to knocking him out. Above 140 he fights very smart (some might say boring) when he's fighting naturally bigger men - not the case against a blown up 140 pounder.

But he's retired and I hope he stays retired unless he fights at 140 or below, because above this weight he fights too "smart" for my taste.

Props to Shane Mosley for a incredible performance and to both fighters for making the fight happen.