Las Vegas,Nevada --- "MARTINEZ LAS VEGAS GRAND ARRIVAL" --- WBC middleweight champion, along with trainer Freddie Roach and Alex Ariza - and two-division world champion Sergio Martinez, with trainer Pablo Sarmiento, arrive at the Wynn Las Vegas, Tuesday for their upcoming Mexican Independence Day Middleweight championship battle. 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. ---- Photos by Chris Farina/Top Rank.