In tonight's UFC 291 event, the co-main event sees light heavyweight title contenders Jan Blachowicz and Alex Pereira go toe-to-toe.
Brazilian fighter Pereira is making his first appearance in the light heavyweight division, having previously held the UFC's middlewight title during his short time with the promotion.
Blachowicz is also a former UFC champion, in the light heavyweight division, and is the current third seed at 186 pounds.
Jamahal Hill vacated the light heavyweight belt earlier in July after rupturing his Achilles, so a win tonight at UFC 291 would make Blachowicz or Pereira a leading candidate for a title fight.
Here's everything you need to know ahead of Blachowicz vs. Pereira.
The main card is set to get underway at 10 p.m. ET / 3 a.m. BST with the main event cagewalks scheduled for 12 a.m. ET / 5 a.m. BST. These timings could change due to the length of the undercard fights.
The fight will be available to purchase on ESPN+ PPV in the U.S. ( click here for more information ), while TNT Sport will broadcast the fight in the UK.
This fight will also be available to watch for DAZN subscribers in Austria, Germany and Italy.
The fight will take place at the Delta Center, Salt Lake City, Utah in the United States.
Main Card
Prelims
Early prelims