Chavez workout photos!

Undefeated WBC Middleweight Champion Julio Cesar Chavez Jr. with trainer Freddy Roach at the Wildcard Boxing Club as they prepare for the upcoming Mexican Independence Day Middleweight championship battle with two-division world champion Sergio Martinez. Promoted by Top Rank, Zanfer Promotions and DiBella Entertainment, in association with Wynn Las Vegas, At&T and Tecate, Chavez Jr. vs Martinez will take place Saturday, September 15 at Thomas & Mack Center in Las Vegas, live on HBO Pay Per View.