With Bryan Caraway out with an injury, Alajamain Sterling will square off against Lucas Martins in a bantamweight contest at UFC 170 in Las Vegas on Feb. 22.
Sterling, who is 8-0 in his career, will make his UFC debut at the event.
Martins, who is 14-1 in his career, has won two of his three UFC fights.
Ronda Rousey will defend her UFC women’s bantamweight title against Sara McMann in the main event.