Robinson would KO Floyd inside of 5 rds. Mayweather has NO power to hold off Robinson and Robinson has power in both hands! It's not close and Floyds so called great defense works against fighters with C+ to B- offenses. Whjat happens when TBE boxer/puncher starts in on him? If Maidana's chop right hand bothered Floyd what's Robinson's right hands going to accomplish?
Mayweather isn't a top ten welter and he would struggle against any top ten lightweight or junior welter. At 130 he could fare well in with that groups top fifteen. Because he's done well against "his" opponents doesn't mean he does well against the top tier talents in boxings history.
Sugar Ray beats him up and theres plenty of film to see how and why!
Ray
Mayweather isn't a top ten welter and he would struggle against any top ten lightweight or junior welter. At 130 he could fare well in with that groups top fifteen. Because he's done well against "his" opponents doesn't mean he does well against the top tier talents in boxings history.
Sugar Ray beats him up and theres plenty of film to see how and why!
Ray

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