The Russian superstar has only fought once since his 2018 KO against Conor McGregor, but he comfortably dispatched Dustin Poirier at UFC 242 during his most recent outing in September 2019.
There will be plenty of intrigue going into this one as Khabib seeks to defend his UFC Lightweight championship against a rising star.
Gaethje stepped in to replace Khabib at UFC 249 on short notice, but his impressive victory over Tony Ferguson has now led to a clash between the pair.
The 31-year-old is the Interim Lightweight champion but will hope to unify the title later this year.
RadioTimes.com has rounded up everything you need to know about how to watch UFC 254 on TV and online.
What is the UFC 254 UK start time?
TV coverage of the UFC 254 event is yet to be confirmed, but previous main events have kick-started at 1am (UK time) in the early hours of Sunday mornings.
UFC 254 will take place during the early hours of Sunday 24th October 2020 in UK time.
What channel is UFC 254 on in the UK?
You can watch UFC 254 exclusively live on BT Sport Box Office in the UK.
The event will cost a one-off fee of £19.95 and the platform is usually reserved for the biggest global events.
Check out how to watch BT Sport Box Office here.
Live stream UFC 254 online
If you purchase an event via Box Office, you can choose to enjoy it via TV or online through a live stream service.
BT Sport Box Office can be streamed through a computer or a mobile device such as a phone or tablet giving you full flexibility to enjoy how you wish.
How to watch UFC 254 in US
US fans can watch the event live in the US via ESPN+.
Where is UFC 254 held?
The UFC 254 event will be held at the Flash Forum facility on Yas Island, Abu Dhabi, a regular hosting venue for fights during lockdown.
UFC 254 fight card
- Khabib Nurmagomedov v Justin Gaethje – Lightweight
- Umar Nurmagomedov v Sergey Morozov – Bantamweight
- Islam Makhachev v Rafael dos Anjos – Lightweight
Check out the UFC 254 weigh-in with our how to watch guide.
For the full list, check out our UFC 254 fight card – coming soon
If you’re looking for more to watch, check out our TV Guide.