MGM Grand Arena

Mayweather Says He Will Retire After Sept. 12 Fight Against Andre BertoBerto, a 2004 Olympian, was once thought of as a rising star but has lost three of his last six fights. Two of those losses were to Robert Guerrero and Victor Ortiz, fighters that Mayweather beat easily.
Mayweather Defeats Guerrero In Style To Retain Welterweight BeltFloyd Mayweather fought as if he had never left the ring, coming back from a year's absence Saturday night to win a unanimous 12-round decision over Robert Guerrero in their welterweight title fight.