By Rick Reeno has been advised by promoter Lou DiBella that Sergio Martinez (47-2-2, 26KOs) will exercise his right, as the WBC's Emeritus champion at 160, to secure an immediate shot at the sanctioning organization's new middleweight champion, Julio Cesar Chavez Jr. (43-0-1, 30KOs). Martinez sat ringside on Saturday night at Staples Center in Los Angeles, and watched Chavez decision Sebastian Zbik to win the WBC crown. Martinez had advised BoxingScene several weeks ago that he was going to push for an immediate shot at the Chavez-Zbik winner.