Marquez v Diaz Weigh-In
WBA/WBO lightweight champion Juan Manuel Marquez (L) and Juan Diaz (R) pose during their official weigh-in at the Mandalay Bay Events Center as Golden Boy Promotions President Oscar De La Hoya (C) looks on July 30, 2010 in Las Vegas, Nevada. Marquez will defend his titles against Diaz on July 31 in Las Vegas.
(July 29, 2010 - Source: Ethan Miller/Getty Images North America) more pics from this album »