The UFC 229 main event between Khabib Nurmagomedov and Conor McGregor was billed as the biggest fight in the history of the promotion, and it certainly was not short on drama.
McGregor returned to the octagon after a two year absence, with the unbeaten Russian standing between him and the lightweight title he was stripped of in April of this year. Khabib would put on a grappling masterclass, with the Irishman unable to deal with his dominant wrestling prowess before submitting in the fourth round.
What should have been the crowning moment of his career quickly descended into chaos however, as Khabib leaped out of the octagon to confront members of Conor's team. Some of his own entourage would also attack McGregor inside the ring, and the unsavoury scenes have been condemned by fighters and fans alike.
Here are the best photos from what is perhaps already the most infamous night in UFC history.
Pictures: Stephen McCarthy/Sportsfile
McGregor exuded confidence during his ring walk
Khabib did not waste time in enforcing his dominant ground game
The Russian lands a flush left hand
This ground and pound in the second round almost ended the fight
The Notorious struggled to land his famous left hand all night
McGregor found it difficult to keep the fight on the feet
Khabib accused McGregor of some underhanded tactics in the third round
Khabib locks in the rear naked choke that would end the fight
Herb Dean stops the fight, but the drama was not finished yet
McGregor looks dejected after his UFC comeback ends in defeat
Khabib leaps out of the octagon to attack members of McGregor's team
The Russian is restrained by security after returning to the ring
UFC President Dana White speaks to McGregor after the incident
The defeated fighter is led out of the arena