Round 4: Mayweather Vs Marquez

Mayweather's pumping that left hand and Marquez finally throws a combination. Mayweather backs him up with an elbow and they tie up. Marquez blocks the lead left hook again. Marquez misses with a triple jab and only grazes Mayweather with the straight right hand. Mayweather lands a straight right and blocks Marquez' incoming combo. Two straight right hands land for Marquez against the ropes. Marquez connects with a right to the body. Mayweather makes Marquez miss now with his one-two. Floyd is jabbing very well and Marquez misses wildly. A cut is bleeding over Marquez' right eye.