LAS VEGAS, NV - MAY 02: Floyd Mayweather Jr. exchange punches with Manny Pacquiao during their welterweight unification championship bout on May 2, 2015 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Al Bello/Getty Images)
LAS VEGAS, NV - MAY 02: Floyd Mayweather Jr. exchange punches with Manny Pacquiao during their welterweight unification championship bout on May 2, 2015 at MGM Grand Garden Arena in Las Vegas, Nevada. (Photo by Al Bello/Getty Images)