CB Dollaway will step in on short notice and fight Tim Boetsch next month at UFC 166, UFC Tonight reported on Wednesday night.
The event takes place from Houston on October 19. The main event that night boasts UFC heavyweight champion Cain Velasquez vs. Junior dos Santos.
Dollaway (13-4) replaces Luke Rockhold, as the former Strikeforce champion suffered an injury. The ex-TUF fighter has won two straight since back-to-back 2011 losses.
Boetsch (16-6) is coming off losses to Mark Munoz and Costa Philippou. He won four straight from 2011-12.