If you remember the Cotto/Mayweather fight, the shots Cotto landed were not effectively clean punches. They were grazing punches as either Floyd got out of the way, slipped a few of them or just did not land flush enough.

If Cotto had caught Floyd cleanly with at least two of those punches within the same round, we would have been having a separate discussion.

There is a difference between hitting someone and then decking them clean as a whistle.