Amir Sadollah has withdrawn from his UFC 91 bout against Nick Catone.

The unlikely winner of “The Ultimate Fighter 7” was forced out of the fight due to a leg infection, the UFC announced Tuesday.

UFC officials sought a replacement for the 28-year-old Sadollah, who had been training in Las Vegas at Xtreme Couture, but an opponent for Catone could not be found.

The welterweight bout between Dustin Hazelett and Tamdan McCrory has been upgraded to the main card portion of Saturday’s pay-per-view.