"Floyd is one of the best boxers of all time. He would definitely beat me in a boxing match. I unfortunately don't get into 'matches'. I fight for a living. In a no rules fight, I believe I can beat anyone on this planet. Boxing is a sweet science with strict rules that I respect very much and aspire every day to improve at." FURIOUS 7 star and ultimate fighting champion Ronda Rousey strongly believes she could beat up boxer Floyd Mayweather, Jr. in a fight.