T.J. Waldburger is down with an unspecified injury, causing him to withdraw from UFC 161. Kenny Robertson now meets Sean Pierson.
Robertson had a pair of UFC losses before taking Submission of the Night over Brock Jardine at UFC 157.
Pierson has won two straight and enters off an injury.
The two fight on the preliminary end of UFC 161. It’s June 15 from the MTS Centre in Canada and headlined with interim bantamweight champion Renan Barao vs. Eddie Wineland.