Manny Pacquiao has knocked Juan Manuel Marquez to the canvas four times in two bouts, but he has not been able to knock him out. In fact, Marquez came away from both bouts with a case to be made that he should have won the final decision (especially the second fight).
Both men have been respectful of their rival in the build-up to Saturday night's third meeting, but Manny thinks there is an ulterior motive to Marquez's politeness as expressed in this Yahoo! article:
"Marquez is the smartest guy I have fought recently," Pacquiao said. "He is a genius. You know why? It is because he is trying to use my personality. He knows I am a nice person, so he thinks that if he is very nice and respectful to me before the fight then I will go easy on him and will not knock him out.
"It is very smart. But I am smarter than him because I know what he is trying to do."
...I believe I will knock him out and it doesn't matter what he says. It doesn't matter if he is nice to me."
One has to think that this is just a bit of talk from Pacquiao. Marquez has never been one to shy away from a fight. And given the fact that Manny has seen the resiliency and toughness of the Mexican star, it's very likely that he knows that he should be prepared to go all twelve rounds if necessary.