Manny Pacquiao vs. Juan Manuel Marquez: Confidence Will Guide Marquez

The confidence Juan Manuel Marquez has going into his epic fight with Manny Pacquiao on Saturday night separates him from many opponents who step into the ring against Pac-Man.

Marquez has faced Pacquiao twice before, and probably won't see anything from Pacquiao that he has not seen already.

After two close decisions in his previous fights with Pacquiao, Marquez knows that he has what it takes to go the distance with Pac-Man.

In his training for this fight, Marquez has gotten stronger. He's added muscle and he has been training vigorously to be able to withstand Pacquiao's most powerful punches.

That added strength will help give Marquez the endurance to be strong even in the later rounds. Only one fighter has been in the ring for more rounds against Pacquiao than Marquez, and this familiarity will help the Mexican.

Marquez has the technical skill and strength to punish Pacquiao when he makes a mistake, and if Marquez can make Pac-Man struggle early on, he will have even more confidence that he can pull off a stunning upset.

At 38 years old, Marquez is a veteran fighter who knows how to win fights and last long in ones he has a clear disadvantage in.

This is the last chance Marquez will have to beat Pacquiao, and with his added strength and supreme confidence there is no reason not to believe that the Mexican can pull off the upset.

Manny Pacquiao usually faces opponents who do not have the confidence Juan Manuel Marquez has going into Saturday night's fight, and if Pac-Man isn't careful he will be upset.