Anderson Silva has never lost in the Octagon, but plans are in place regardless of Saturday’s outcome at UFC 162. Silva puts his UFC middleweight belt on the line against Chris Weidman in the UFC 162 main event at the MGM Grand Garden Arena in Las Vegas. The champ is the decided favorite, but there’s always the chance that Weidman could pull off the upset. In fact, many of Silva and Weidman’s compatriots are picking the undefeated youngster to do just that. UFC president Dana White said on Monday that if Weidman were successful Silva would get an immediate rematch. “I’d do the rematch the next fight,” White told MMAjunkie.com during a media luncheon. “Guy hasn’t lost in the UFC ever, has beat everybody