Julio Cesar Chavez vs Floyd Mayeather Jr In September? Well, it looks like Chavez wants the fight with Floyd. He dropped a poster of him and TBE Floyd Mayweather with a date in September. This is sure to be a fight to draw a mega crowd. The fight it self, probably won't live up to the hype. If it does happen, I hope it is entertaining and both fighters come out the fight save and sound.