Michael McDonald and John Lineker will now headline the Octagon’s first stop in South Dakota at UFC Fight Night 91.
Officials announced the change on Tuesday after Mike Chiesa was forced to remove himself from a planned main event vs. Tony Ferguson.
The UFC did sign unbeaten Landon Vannata to face Ferguson, keeping the former Ultimate Fighter winner and top lightweight contender on the July 13 card.
Below is the current lineup:
Bantamweight: John Lineker vs. Michael McDonald
Lightweight: Tony Ferguson vs. Landon Vannata
Middleweight: Tim Boetsch vs. Josh Samman
Lightweight: Scott Holtzman vs. Cody Pfister
Welterweight: Kyle Noke vs. Keita Nakamura
Flyweight: Ben Nguyen vs. Louis Smolka
Middleweight: Devin Clark vs. Alex Nicholson
Heavyweight: Daniel Omielanczuk vs. Oleksiy Oliynyk
Bantamweight: Rani Yahya vs. Matthew Lopez
Featherweight: Ryan Hall vs. Alex White
Middleweight: Sam Alvey vs. Eric Spicely