Kenny Robertson has suffered an injury and he is off UFC On Fox 15, replacing him against George Sullivan will be Tim Means. Sullivan is currently undefeated in UFC competition, most notably defeating Mike Rhodes at UFC On Fox X. Means will enter the fight riding a three fight winning streak, last defeating Dhiego Lima at UFC 184. UFC On Fox 15 takes place on April 18th from the Prudential Center in Newark, New Jersey with Lyoto Machida and Luke Rockhold headlining.