Matt Riddle replaces 'Wonderboy' at UFC 154

The UFC have found an opponent for Stephen ‘Wonderboy’ Thompson , who was forced off the upcoming UFC 154: St-Pierre vs. Condit event with a knee injury.
On Monday, the promotion identified Thompson’s replacement naming Matt ‘Deep Waters’ Riddle  as the man to take on Besam Yousef at the Canadian event.

From UFC.com:

With a knee injury sidelining Stephen Thompson from his UFC 154 bout with Besam Yousef, longtime welterweight standout Matt Riddle has answered the call, stepping up to meet the Swedish fighter at the Bell Centre in Montreal on November 17.