UFC 4: Revenge of the Warriors was a mixed martial arts (MMA) event held by the Ultimate Fighting Championship (UFC) on December 16, 1994, at the Expo Center Pavilion in Tulsa, Oklahoma, United States.

[1][2] As usual, virtually all martial artists of any significance were contacted by the promoters of the event.

All seven tournament fights were shown on the live pay-per-view broadcast, as well as the Jason Fairn vs.

Royce Gracie won the event by defeating Dan Severn with a triangle choke.

The card also featured the notorious fight between Keith Hackney and Joe Son; Hackney won via submission after landing a series of unanswered strikes to the groin of Joe Son.