The third bout between heavyweights Cain Velasquez and Junior dos Santos has been confirmed for UFC 166 on Oct. 19 at the Toyota Center in Houston, Texas. UFC president Dana White confirmed the date and location at a media luncheon in Las Vegas on Monday. Las Vegas-based MMA reporter John Morgan first tweeted the news. Velasquez (12-1) captured the UFC heavyweight title at UFC 121 on Oct.