Three championships will be defended in one night.
In the biggest pay-per-view of 2020 thus far, Kamaru Usman and Jorge Masvidal will headline the loaded event with a five-round match-up for the UFC Welterweight title. The heat between both men is well documented, and despite Masvidal being a replacement for Burns, the welterweight claims that he's been preparing for his fight against Usman for months.
Usman is coming off a war against Colby Covington at UFC 245, whereas Masvidal has managed to win his last three fights via knockout. Who will walk out the UFC Welterweight Champion following UFC 251?
In the co-main event, Max Holloway will get an opportunity to reclaim the UFC Featherweight title. Alexander Volkanovski is looking to be the first man to knock out the MMA veteran; however, will those plans be derailed by the former champion tonight?
For the bantamweight title, Jose Aldo hopes to win his second division championship in the UFC as the former UFC Featherweight Champion will fight rising prospect Petr Yan for the vacant belt.
Check out the finalized line-up for UFC 251 below:
Main card (from 3am BST - BT SPORT 1):
Kamaru Usman vs Jorge Masvidal (UFC welterweight title - main event)
Alexander Volkanovski vs Max Holloway (UFC featherweight title - co-main)
Petr Yan vs Jose Aldo (vacant UFC bantamweight title)
Rose Namajunas vs Jessica Andrade 2 (Women's strawweight)
Paige VanZant vs Amanda Ribas (Women's flyweight)
Prelims (from 1am BST - BT SPORT 1):
Volkan Oezdemir vs. Jiri Prochazka (light heavyweight)
Elizeu Zaleski dos Santos vs Muslim Salikhov (welterweight)
Makwan Amirkhani vs Danny Henry (featherweight)
Leonardo Santos vs Roman Bogatov (lightweight)
Early prelims (from 11.30pm - UFC FIGHT PASS)
Marcin Tybura vs Alexander Romanov (heavyweight)
Raulian Paiva vs Zhalgas Zhumagulov (flyweight)
Karol Rosa vs Vanessa Melo (Women's bantamweight)
Davey Grant vs Martin Day (bantamweight)