Jorge Masvidal threw a flurry of punches at Leon Edwards just minutes after his stunning victory over Darren Till at UFC London.
Masvidal knocked Till out cold with a brutal left at the O2 Arena to secure a win that surely thrusts him back into the welterweight world title picture.
The 34-year-old was giving an interview with ESPN backstage when Edwards approached off-camera.
Masvidal walked over to confront him, seemingly calm, but after exchanging words began launching blows at the Birmingham fighter.
Security intervened to break the two up.
Post-fight press conferences with Masvidal, Edwards and Till were not held, with the latter taken to hospital following his chilling KO.
Edwards beat Gunnar Nelson in the chief undercard fight, challenging the winner of Till vs Masvidal in his in-ring interview following a split decision victory.
A bout against champion Kamaru Usman is also in his cross hairs after the 17th win of his professional career.
