Waldburger injured, Kenny Robertson vs. Sean Pierson set for UFC 161

Kenny Robertson submits Brock Jardine at UFC 157

The UFC 161 event has a new fight due to another injury to a UFC fighter. TJ Waldburger has had to withdraw from his UFC 161 scheduled bout with Sean Pierson. UFC welterweight Kenny Robertson has agreed to step in on short notice to face Pierson.

UFC 152: Cub Swanson vs. Charles Oliveira and Dan Miller vs. Sean Pierson set for Canada

Two new fights have been added to the UFC 152 event as Cub Swanson (17-5) faces Charles Oliveira (16-2) in a featherweight matchup, and Dan Miller (14-6) takes on Sean Pierson (12-6) in a welterweight war. The event takes place at the Air Canada Centre in Toronto on Sept. 22.