In a 170lb clash between two highly touted young prospects, Johny Hendricks pounded out Amir Sadollah in less than two minutes.
The fight was so short that they repeated the entire thing immediately after the fight.
Announcer Joe Rogan called it a bad stoppage by referee Dan Miragliotta.
The crowd booed the quick stoppage as Rogan interviewed the winner. Hendricks said "I didn't stop it."
The welterweight bout pitted The Ultimate Fighter Season 7 winner Amir Sadollah (1-0) against Team Takedown fighter and two-time NCAA Division I wrestling champion Johny Hendricks (5-0).