Matt Schnell, who competed on The Ultimate Fighter 24, will fight again at the finale, replacing Alejandro Perez for a contest with Rob Font.
Schnell (9-2) was eliminated on the reality series by Tim Elliott. He will be making his Octagon debut after entering TUF as the Legacy FC interim champion.
Font (12-2) has scored wins in three of his UFC fights.
The Ultimate Fighter 24 Finale takes place Saturday night on FOX Sports 1, as flyweight champion Demetrious Johnson meets the winner of the series.