Pound for pound king Floyd Mayweather (L) and Saul 'Canelo' Alvarez (R) are seen alongside boxing promotor Richard Schaefer (C) during a press conference at the Monumento a los Niños Heroes on June 30, 2013 in Mexico City. Floyd Mayweather and Saul 'Canelo' Alvarez are scheduled to fight September 14 at the MGM Grand in Las Vegas, Nevada to unifty their junior middleweight world titles.

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