5 reasons Mosley will beat Pacquiao

LAS VEGAS -- Epic is the best way to describe this Saturday's welterweight title fight between Manny Pacquiao (52-3-2, 38 KOs) and Shane Mosley (46-6-1, 39 KOs). As surprising or predictable as the result may be, it is quite unlikely for us to see anything new from these two all-time greats.

Their styles are battle-tested, their strengths and weaknesses are well known, and they have accomplished enough to open their own private Hall of Fames out of the garages of their mansions. With rare exceptions, the fights that they may make after this one will be done, regardless of the outcome of this fight and without it being a determining factor in the ensuing negotiations. This is one of those rare fights in which the worst-case scenario is a fight well above the current average, and in the best possible case it will be an epic and historic performance.

There are several ways this fight can play out. Here are five potential reasons Mosley could win:

Size does matter

Mosley never quits

The future is today

His legacy could use a more solid foundation

This is his last shot at true greatness

Diego Morilla is a contributor to ESPNdeportes.com.