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Jose Aldo and Max Holloway do battle for the second time with the UFC featherweight championship on the line.
Holloway is making the first defence of his 145lbs title.
Here's how to watch all the action.
UFC 218 Aldo vs Holloway 2 live stream
BT Sport have broadcast rights to the UFC, and fans can watch the action via their digital services.
The game can be watched on desktop or laptop computers via the BT Sport app - if you are a subcriber to BT Sport.
It’s also available on iOS and Android smartphone and tablet devices as well as other platforms including Amazon Fire devices, iPad, Mac computers and laptops, Playstation 3, PS4 and Xbox One.
Graphic content: Are these the UFC's BLOODIEST brawls?

What TV channel is UFC 218 Aldo vs Holloway 2 on?
BT Sport are showing the all the action on BT Sport 2.
The prelims get underway at 1am (Sunday morning) lasting for two hours.
The main Aldo vs Holloway programme then gets underway at 3am with a scheduled finish of 7am.
Preliminary fights are also available on the UFC's Fight Pass service for those who are not BT Sport subscribers.
* PLEASE NOTE: You'll need a valid TV Licence if you watch or record live programmes on ANY TV channel as it is a criminal offence in the UK to watch “live” television without a TV licence. This also applies to any device you use.
UFC 218 Aldo vs Holloway 2 UK start time
The main card gets underway at 3am UK time, with Holloway vs Aldo the main event.
Where is UFC 218 Aldo vs Holloway 2 taking place?
UFC 218 is taking place at Little Caesars Arena in Detroit, Michigan.
UFC 218 full card
Main card
Max Holloway vs. Jose Aldo (featherweight title fight)
Alistair Overeem vs. Francis Ngannou (heavyweight bout)
Henry Cejudo vs. Sergio Pettis (flyweight bout)
Eddie Alvarez vs. Justin Gaethje (lightweight bout)
Tecia Torres vs. Michelle Waterston (women’s strawweight)
Prelims
Charles Oliveira vs. Paul Felder (lightweight bout)
Alex Oliveira vs. Yancy Medeiros (welterweight bout)
David Teymur vs. Drakkar Klose (lightweight bout)
Felice Herring vs. Courtney Casey (women’s strawweight bout)
Abdul Razak Alhassan vs. Sabah Homasi (welterweight bout)
Jeremy Kimball vs. Dominick Reyes (light-heavyweight bout)
Justin Willis vs. Allen Crowder (heavyweight bout)
Amanda Cooper vs. Angela Mangana (women’s strawweight bout)