The UFC ’s eighth pay-per-view card of the year takes place early on Sunday morning, with the hostilities coming all the way from Yas Island in Abu Dhabi.
Topping the bill on Fight Island is the eagerly-anticipated middleweight title fight between undisputed champion Israel Adesanya and the undefeated Paulo Costa.
The pair, 31 and 29 respectively, have been on a collision course for close to two years - with their rivalry reaching news heights moments after Adesanaya dethroned Robert Whittaker last November.
Championship gold will also be on the line in the co-main event of the evening, which will see Dominick Reyes and Jan Blachowicz vie for the vacant light-heavyweight title - which long-reigning champion Jon Jones vacated in August.
From top to bottom, UFC 253 is jam-packed with entertaining fights, making a must-watch card for even the most casual mixed martial arts fan.
Here's everything you need to know about the event:
When and where is UFC 253 taking place?
UFC 253 takes place on Fight Island (Yas Island), Abu Dhabi early on Sunday, September 26.
What channel is UFC 253 on?
The main card and the preliminary fights will be shown live on BT Sport 1.
Alternatively, if you don't have BT Sport, you can watch the prelims on the UFC's Fight Pass service.
What time will UFC 253 start?
The preliminary fights will get underway at 6:00pm ET and 3:00pm PT, with the main card kicking off at 10pm ET and 7pm PT.
What time does UFC 253 start in the UK?
The prelims will get underway at 11:00pm BST on Saturday, September 26.
What time will UFC 253’s main card get underway in the UK?
The main card will commence at 3:00am BST.
What time will UFC 253’s main event start?
Adesanya and Costa are expected to make their respective walks to the Octagon at around 6:00am BST (21:00pm ET and 10:00pm PT).
Can I watch UFC 253 online?
BT Sport subscribers will be able to watch the eighth pay-per-view card of the year through their mobile device via the BT Sport App.
The preliminary fights will be available to watch on the UFC’s Fight Pass service.
Can I live stream UFC 253 for free?
UK fight fans wanting to watch the eighth pay-per-view of the year will be able to do so if they’re EE mobile customers. MMA fans can get three months' worth of BT Sport on their EE devices by texting SPORT to 150, registering for a BT ID and then downloading the BT Sport app.
The subscription can be cancelled at any point during the trial.
UFC 253 fight card
Israel Adesanya vs Paulo Costa (middleweight title fight)
Dominick Reyes vs Jan Blachowicz (light-heavyweight title fight)
Kai Kara-France vs Brandon Royval (men's flyweight bout)
Ketlen Vieira vs Sigara Eubanks (women's bantamweight bout)
Hakeem Dowodu vs Zubaira Tukhugov (men's featherweight bout)
Brad Riddell vs Alex Da Silva (lightweight bout)
Diego Sanchez vs Jake Matthews (welterweight bout)
Shane Young vs L'udovit Klein (men's featherweight bout)
Fight Pass Prelims
William Knight vs Aleksa Camur (light-heavyweight bout)
Juan Espino vs Jeff Hughes (heavyweight bout)
Khadis Ibragimov vs Danilo Marques (light-heavyweight bout)