Steve Marcus
Boxing promoter Bob Arum, CEO of Top Rank, speaks during a news conference during a news conference at the MGM Grand June 6, 2012. Julio Cesar Chavez Jr., promoted by Top Rank, will defend his WBC middleweight title against Sergio Gabriel Martinez at the Thomas & Mack Center on September 15. On the same day, Golden Boy Promotions is promoting a fight between WBC super welterweight champion Canelo Alvarez of Mexico and Victor Ortiz at the Mandalay Bay Events Center.