Mayweather Jr. Prepares For Alvarez

Undefeated boxer Floyd Mayweather Jr. watches his reflection in a mirror as he works out at the Mayweather Boxing Club Wednesday, August 28, 2013. Mayweather will face Canelo Alvarez of Mexico in a WBC/WBA 154-pound title fight at the MGM Grand Garden Arena on September 14.

Undefeated boxer Floyd Mayweather Jr. watches his reflection in a mirror as he works out at the Mayweather Boxing Club Wednesday, August 28, 2013. Mayweather will face Canelo Alvarez of Mexico in a WBC/WBA 154-pound title fight at the MGM Grand Garden Arena on September 14. by Steve Marcus