Injuries to Demian Maia and Brandon Thatch have forced them from their August 23 bouts against Mike Pyle and Jordan Mein, respectively.
Pyle and Mein weren't without opponents for the Tulsa event for long though, as the two welterweight standouts will now face each other in the UFC Fight Night co-main event.
The FOX Sports 1 card is headlined by the five-round lightweight matchup between Benson Henderson and Rafael Dos Anjos.
