Andrei Arlovski will step in for Parker Porter and fight Chase Sherman at UFC on ESPN 22.
Fight Bananas was first to report the change to the heavyweight contest. UFC on ESPN 22 takes place at the UFC Apex in Las Vegas on April 17 and is headlined by a middleweight clash between Robert Whittaker and Kelvin Gastelum.
Arlovski last appeared at UFC Fight Night 185, where the former heavyweight champ was submitted by Tom Aspinall in the second frame on Feb.