An injury to Sean Pierson has forced a change to UFC 158: St-Pierre vs. Diaz, as Rick Story will now face Quinn Mulhern. UFC officials announced the new fight on Tuesday.
The card takes place March 16 from the Bell Centre in Montreal. Story-Mulhern will take place on the prelims.
Story (14-6) is looking for his eighth UFC victory, but has going just 1-3 since a six-fight win streak. He was submitted by Demian Maia last October.
Mulhern (18-2) will be making his UFC debut against Story. The 28-year-old went 3-1 while competing in Strikeforce, including three-straight victories.