J.C. Cottrell will make his Octagon debut this month, taking on Michel Prazeres at UFC on FOX 20.
Cottrell (17-3) replaces Tony Martin, who was forced out of the bout with a neck injury.
The event takes place July 23 from the United Center in Chicago.
Cottrell has scored 13 stoppage wins in his career and is on a six-fight win streak that stretches back three years. Prazeres (19-2) has gone 3-2 over five UFC appearances.
Below is the current lineup:
Female Bantamweight: Holly Holm vs. Valentina Shevchenko
Lightweight: Edson Barboza vs. Gilbert Melendez
Heavyweight: Francis Ngannou vs. Bojan Mihajlovic
Strawweight: Felice Herrig vs. Kailin Curran
PRELIMINARY CARD (FOX)
Welterweight: Alex Oliveira vs. James Moontasri
Welterweight: George Sullivan vs. Hector Urbina
Welterweight: Kamaru Usman vs. Alexander Yakovlev
Heavyweight: Luis Henrique vs. Dmitry Smolyakov
Bantamweight: Eddie Wineland vs. Frankie Saenz
Lightweight: Michel Prazeres vs. J.C. Cottrell
Featherweight: Darren Elkins vs. Godofredo Pepey
Featherweight: Jim Alers vs. Jason Knight