In the opening rounds, Diaz appeared to be winning the fight, pinning Marquez on the ropes and occasionally staggering him with big left hands. In the eighth round, Diaz was cut over his eye by a Marquez punch, much like he was in the loss to Nate Campbell. After starting strong in the ninth round, Marquez's precision punching proved to be too much and Diaz was knocked down twice, bringing an end to the fight.
In the initial rounds, Diaz appeared to be winning the fight, pinning Marquez on the ropes and occasionally staggering him with powerful left hands. In the eighth round, Diaz was cut over his eye by a Marquez punch, similar to his loss against Nate Campbell. After starting strong in the ninth round, Marquez's precise punching proved too much for Diaz, leading to his defeat.