Roach: A win for Pacquiao over Marquez will get us closer to a Mayweather fight

By Chris Williams: Trainer Freddie Roach thinks the key to his fighter Manny Pacquiao (54-5-2, 38 KO's) getting a long awaited mega fight with Floyd Mayweather Jr. (44-0, 26 KO's) is if Pacquiao is able to get a 5th fight with Juan Manuel Marquez (55-6-1, 40 KO's) and knock him out. Roach thinks the boxing