Floyd Mayweather Jr. connects a punch on Guerrero during their title fight at the MGM Grand Garden Arena in Las Vegas

 
Floyd Mayweather Jr. connects a punch on Guerrero during their title fight at the MGM Grand Garden Arena in Las Vegas
WBC welterweight champion Floyd Mayweather Jr. (L) of the U.S. connects a punch on Robert Guerrero, also of the U.S., during their title fight at the MGM Grand Garden Arena in Las Vegas, Nevada May 4, 2013. REUTERS/Steve Marcus (UNITED STATES - Tags: SPORT BOXING TPX IMAGES OF THE DAY)