Colby Covington and Jorge Masvidal will headline UFC 272 from T-Mobile Arena in Las Vegas on Saturday.
The bad blood between Covington and Masvidal has been covered extensively. The two were teammates and training partners at American Top Team until a falling-out put them at odds with one another.
They will settle some of their differences in Saturday's main event.
The pay-per-view card is a rare offering in that it doesn't feature a title fight at the top. But there are still some intriguing fights that could have an impact on their respective weight divisions' futures.