Floyd Mayweather vs Conor McGregor: The big boxing fight in numbers

Floyd Mayweather faces Connor McGregor in Las Vegas on Saturday. Mayweather, who has not fought in nearly two years, needs a win to surpass Rocky Marciano's record and reach 50-0 for his career, while McGregor, who is making his professional boxing debut, is 21-3 in mixed martial arts. (Video courtesy: SNTV)