On Saturday night at the Delta Center in Salt Lake City, Utah, UFC 307 takes place with light heavyweight champion Alex Pereira putting his title on the line against fellow knockout artist Khalil Rountree Jr. in the main event.
Pereira is one of the top pound-for-pound fighters in the sport and has already jumped in on two previous occasions this year to help the UFC at UFC 300 and at UFC 303 (where he delivered spectacular knockouts).