There are certain fighters in the game that you are just wasting your time and energy trying to knock out, most of them are actually very beatable if you box them...

Antonio Margarito
Librado Andrade

to mention just a couple, you hit these guys with baseball bats and they keep coming, Kessler proved with Andrade all you have to do it box and move and frustrate these fighters and the win comes, stand and trade and there will always be only one result -

Margarito v Cintron 1 & 2
Andrade v Mack, Steigliez etc