Why Floyd was unable to KO'd Cotto?

Floyd ain't a KO puncher and neither is Cotto.

 

Mayweather hasn't got KO power at these higher weights. If he stops someone, or comes close to stopping someone, it is through accumulation. Cotto's defense was very good, he wasn't being hit as clean as some of Mayweather's recent opponents...whilst Cotto was also doing enough to make a competitive bout (especially during certain rounds).

 

...cotto good..experience..not to stand and keep gettin hit when hurt....and floyds hurt wrist....but more of the 1st....cottos experience...



allthough..i believe floyd carried him aswell in the 12th....but only they kno....if that was the case

 

Maybe because Cotto was generally seen as the #1 at Junior Middleweight going in, and that he showed up in shape and tried to win.

 

C0tt0 has never really been KO'd.He has been dropped but never really had his senses taken from him.