Ali, Leonard, Mayweather and more - 5 fights when boxing broke the bank
Nine-figure purses and pay-per-view revenues to match have already been projected for Floyd Mayweather's fight with mixed martial arts champion Conor McGregor in Las Vegas in August. Jefferies came out of retirement to challenge Johnson in the so-called 'Fight of the Century' as white America sought desperately to find a way to dethrone the controversial champion.