The 5 greatest boxing rivalries

With the curtain now closed on Pacquiao v Mayweather, Esquire looks back at boxing's finest duels
Ali, Boxing, Frazier, Mayweather, Sports
AFPGetty Images
Ali, Boxing, Frazier, Mayweather, Sports
AFPGetty Images
Ali, Boxing, Frazier, Mayweather, Sports
AFPGetty Images
Ali, Boxing, Frazier, Mayweather, Sports
REX
Ali, Boxing, Frazier, Mayweather, Sports
Ali, Boxing, Frazier, Mayweather, Sports
Ali, Boxing, Frazier, Mayweather, Sports
08August2015
Andrew Nagy