Las Vegas, Nev.: Golden Boy Promotions officially announced the rematch of Juan Manuel Marquez (50-5-1, 37 KOs) and Juan Diaz (35-3, 17 KOs) for July 31, at Mandalay Bay in Vegas. Trying to repeat the success of last year's Fight of the Year, the two will both return to lightweight to fight for the WBA and WBO titles. Photos by Chris Cozzone/FightWireImages.com.
