6 / 8

US Boxer Floyd Mayweather Jr. (R) And Puerto Rico's Miguel Cotto (L) Duel It Out On May 5, 2012 In Las Vegas, Nevada, AFP/Getty Images

US boxer Floyd Mayweather Jr. (R) and Puerto Rico's Miguel Cotto (L) duel it out on May 5, 2012 in Las Vegas, Nevada, during their Super Welterweight Championship fight. Mayweather Jr. defeated Cotto on a unanimous decision in the 12-roud bout. AFP PHOTO/Frederic J. BROWNFREDERIC J. BROWN/AFP/GettyImages

Boxing champ Mayweather heads to jail

Floyd Mayweather Jr. turned himself in on June 1 in a Las Vegas courtroom to begin serving a three-month jail sentence for attacking his ex-girlfriend in September 2010 while two of their children watched.