An undisclosed injury has forced Amir Sadollah to pull out of his UFC 160 bout against Stephen Thompson and Nah-Shon Burrell has agreed to step in. 
UFC officials announced the change on Wednesday and the fight will take place on the preliminary card.
UFC 160 takes place on May 25th from the MGM Grand Garden Arena and will be headlined by Cain Velasquez defending the UFC heavyweight title against Antonio “Bigfoot” Silva.
Burrell (9-2) made his UFC debut earlier this year when he defeated Chris Leben by decision at UFC 156. Prior to entering the UFC, he was a four fight veteran of Strikefore where he won three of his four fights in the organization.
Thompson (6-1) entered the UFC at the beginning at 2012 and won his debut against Dan Stittgen at UFC 143. He suffered his first career defeat at UFC 145 against Matt Brown and was defeated by unanimous decision.
The current UFC 160 fight card is below:
Cain Velasquez (11-1) vs. Antonio Silva (18-4) – UFC Heavyweight Title Bout
Junior dos Santos (15-2) vs. Mark Hunt (9-7)
Glover Teixeira (20-2) vs James Te Huna (16-5)
TJ Grant (20-5) vs. Gray Maynard (11-1-1, 1NC)
Donald Cerrone (19-5, 1NC) vs. KJ Noons (11-6)
Gunnar Nelson (11-0-1) vs. Mike Pyle (24-8-1)
Khabib Nurmagomedov (19-0) vs. Abel Trujillo (10-4)
Nah-Shon Burrell (9-2) vs. Stephen Thompson (6-1)
Colton Smith (3-1) vs. Robert Whittaker (10-2)
Estevan Payan (14-3, 1NC) vs. Jeremy Stephens (20-9)
Brian Bowles (10-2) vs. George Roop (13-9-1)
Dennis Bermudez (10-3) vs. Max Holloway (7-1)