UFC heavyweight champion Cain Velasquez defends his belt for the first time against number one contender Junior Dos Santos. The Brazilian has looked spectacular in his past few bouts, and Velasquez has also steamrolled through his opponents on route to earning the UFC heavyweight title in a first round TKO victory over Brock Lesnar in October of 2010. This bout will mark the UFC's first fight under the Fox Sports umbrella. Tune in November 12th at 9pm (eastern).