MGM Grand Arena

Floyd Mayweather Jr. (L) throws a punch at Juan Manuel Marquez.

Mayweather Says He Will Retire After Sept. 12 Fight Against Andre Berto

Berto, 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.

08/04/2015

Floyd Mayweather Jr. throws a left at Robert Guerrero during the fifth round of their WBC welterweight title bout at the MGM Grand Garden Arena on May 4, 2013 in Las Vegas, Nevada (Photo by Ethan Miller/Getty Images)

Mayweather Defeats Guerrero In Style To Retain Welterweight Belt

Floyd 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.

05/05/2013