The main event will take place at the light-heavyweight limit of 205lb on Saturday night after Paulo Costa revealed at this week's press conference he would be unable to make anywhere near 185lb to compete at middleweight.

It had been announced that the contest would take place at a 195lb catchweight but both men look as though they will now escape any sort of significant weight cut in order to make the bout happen.

Costa will be forced to relinquish a significant portion of his purse to Vettori as a penalty for missing weight so egregiously but the 30-year-old is still expected to make his first appearance since losing to Israel Adesanya for the 185lb strap in September last year.

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When is UFC Fight Night: Costa vs Vettori?

The event will be shown exclusively live at 7pm (9pm main card) on Saturday 23 October on BT Sport 2 HD and across our digital platforms.

UFC Fight Night: Costa vs Vettori Fight Card

Paulo Costa vs Marvin Vettori - Light heavyweight

Grant Dawson vs Rick Glenn - Lightweight

Jessica-Rose Clark vs Joselyne Edwards - Women's bantamweight

Alex Caceres vs Seung Woo Choi - Featherweight

Dwight Grant vs Francisco Trinaldo - Welterweight

Nicolae Negumereanu v Ike Villanueva - Light heavyweight

UFC Fight Night: Costa vs Vettori Prelims

Jun Yong Park vs Gregory Rodrigues - Middleweight

David Onama vs Mason Jones - Lightweight

Tabatha Ricci vs Maria de Oliveira Neta - Women's strawweight

Jamie Pickett vs Laureano Staropoli - Middleweight

What if I can't watch UFC Fight Night: Costa vs Vettori live?

No problem! Our brilliant enhanced video player is available on both the BT Sport app on mobile and tablet and BTSport.com.

You won't miss miss a second of the action thanks to our interactive timeline, which lets you control your own viewing experience by allowing you to scroll back through the entire card - or skip to your preferred fight using our 'chapters' feature.

And most importantly, the entire card will remain available to watch spoiler-free immediately after broadcast - as it will on our large screen device app. Bookmark this page and return at your leisure to tune in from the outset.

You can also watch a replay of the fight card on BT Sport on Sunday night. Check the TV Guide for more information.

How to live stream UFC Fight Night: Costa vs Vettori on a phone or tablet

Subscribers wanting to watch the fights can open the BT Sport app on Saturday night and follow the link at the top of the homepage.

The app is available to download for free on iOS and Android phones and tablets.

How to live stream UFC Fight Night: Costa vs Vettori on a laptop

Follow this UFC Fight Night: Costa vs Vettori link or access via bt.com/sport when our coverage gets underway.

How to watch UFC Fight Night: Costa vs Vettori on TV

Make your device's home page spoiler-free!

Our award-winning app on mobile and tablets allows you to customise your home page to avoid seeing spoilers the morning after the big fights.

To make the switch to a spoiler-free home page, open up the app and click 'More' in the bottom corner.

Under 'Settings' change the 'Landing page' option from 'Home' to 'Spoiler-free replays'.

You will then need to exit and close your app. Once you reload the app, your home page will default to the 'Spoiler-free' tab in the Sports navigation menu.

Once you're done in spoiler-free mode, you can either revert your home page back to the default option - or simply navigate away from the spoiler-free tab and check out some of our other must-see content across the app.