Undefeated boxers Floyd Mayweather Jr. (L) of the U.S. and Canelo Alvarez of Mexico face off during an official weigh-in at the MGM Grand Garden Arena in Las Vegas, Nevada, September 13, 2013. The ... more 
Undefeated boxers Floyd Mayweather Jr. (L) of the U.S. and Canelo Alvarez of Mexico face off during an official weigh-in at the MGM Grand Garden Arena in Las Vegas, Nevada, September 13, 2013. The boxers will face each other in a WBC/WBA 154-pound title fight at the arena on September 14. REUTERS/Steve Marcus (UNITED STATES - Tags: SPORT BOXING) less 
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Reuters | Photo By STEVE MARCUS / REUTERS
Fri, Sep 13, 2013 6:56 PM EDT