Conor McGregor will bid to avoid a third defeat in four fights tonight when he takes on Dustin Poirier for the third time.
Seven years ago, the Irishman announced himself on the global stage with a first-round knockout of his American rival.
He went on to become of the biggest stars on the planet as he won two UFC world titles - and took on Floyd Mayweather in the boxing ring.
But his defeat by Khabib Nurmagomedov was followed by a long spell out of the octagon and he has only a 40-second KO of Donald Cerrone to his name since.
And his defeat by Poirier in their rematch six months left many wondering if he is at the end of his career.
Here is everything you need to know as McGregor attempts to prove them wrong...
What time will the fight start in the UK?
The main event will not start before 5am UK time and could start as late as 6am. The start time will be dictated by the length of the previous main card bouts which start at 3am.
The early prelim fights start at 11.15pm UK time and the prelim card begins at 1am.
How to watch via live stream and on TV
The early prelim fights will be shown on the UFC's Fight Pass streaming service. You can sign up on the website by clicking here.
The prelim card and the main card will be shown on BT Sport Box Office which you can purchase for £19.95 from here.
The prelim fights will also be shown on BT Sport 2 from 1am.
Full UFC 264 fight card
Main card (3am)
Dustin Poirier vs Conor McGregor
Gilbert Burns vs Stephen Thompson
Tai Tuivasa vs Greg Hardy
Irene Aldana vs Yana Kunitskaya
Sean O'Malley vs Kris Moutinho
Preliminary card (1am)
Carlos Condit vs Max Griffin
Niko Price vs Michel Pereira
Ryan Hall vs Ilia Topuria
Trevin Giles vs Dricus du Plessis
Early preliminary card (11.15pm)
Jennifer Maia vs Jessica Eye
Omari Akhmedov vs Brad Tavares
Zhalgas Zhumagulov vs Jerome Rivera
Hu Yaozong vs Alen Amedovski
Odds
Quotes corner
Conor McGregor
“In 16 hours time this man is going to learn if you take a person’s kindness and take it as a weakness, you must pay.
"Tomorrow night I'm going to make this man pay with his life and I mean it. You are dead in that Octagon tomorrow night!"
Dustin Poirier
"And I know Conor was talking crazy yesterday about killing me and all that," said Poirier. "I go to sleep praying every night that he gets home to his family safe.
"I'm not here to hurt anybody or do anything like that. So I just want to put that out there."
