There's no question this has all the makings of a superfight. Two undefeated fighters, both have a claim to being the best in the division. If Mayweather wins, he will prove that he's still the best in the sport. If Alvarez wins, he will go down in history as the man who beat Floyd Mayweather (Castillo I notwithstanding). Either way, this could be a big change in either man's careers. The only question is, will Floyd make this fight happen?