The fastest men ever to compete in the Octagon take center stage in Chicago on January 26th. UFC flyweight champion Demetrious “Mighty Mouse” Johnson defends his crown for the first time against The Ultimate Fighter season 14 winner John “The Magician” Dodson. Plus, former light heavyweight champion Rampage Jackson faces Brazil’s breakout star Glover Teixeira, and Donald “Cowboy” Cerrone battles Anthony “Showtime” Pettis for the No. 1 lightweight contender spot.