Sean Spencer (10-2 MMA, 1-1 UFC) has replaced injured Zak Cummings (16-3 MMA, 1-0 UFC) and now meets fellow welterweight Sergio Moraes (8-2 MMA, 2-1 UFC) at The Ultimate Fighter 18 Finale.

UFC officials today announced the switch. The nature of Cummings' injury wasn't disclosed.

The TUF 18 Finale takes place Nov. 30 at Mandalay Bay Events Center in Las Vegas. The bulk of the card airs on FOX Sports 1 following Facebook prelims.

Spencer vs. Moraes is slated for the prelims.