Manny Pacquiao, Juan Manuel Marquez exude confidence at weigh-in
In the third fight between Manny Pacquiao and Juan Manuel Marquez, Pacquiao predicts a knockout. Marquez is bulkier, and his trainer says they're going for the 'technical advantage.'
Manny Pacquiao, left, and Juan Manuel Marquez face off during their weigh-in on Friday in Las Vegas.
