Jon Jones and Amanda Nunes put their titles on the line in Las Vegas tonight in the biggest UFC event of the year so far.
Jones fights for the third time in little over six months as he defends his light-heavyweight belt against Thiago Santos, following wins over Alexander Gustafsson and Anthony Smith.
Nunes, meanwhile, has established herself as one of the biggest names in mixed martial arts with decisive stoppage wins over first Ronda Rousey and then Cris Cyborg.
She takes on Holly Holm who is looking to return to her place at the top of the bantamweight division.
But there is plenty of depth across the whole card, and we have everything you need to know right here...
When is UFC 239?
UFC 239 is tonight, Saturday, July 6.
What time does it start?
The fights start at 11.30pm with the main event on at around 5am UK time.
What TV channel is it on?
The fight will be shown on BT Sport Box Office, priced at £19.95. Click here to order .
Is there a live stream?
The fight can be streamed on the BT Sport website, for the same cost.
Who is on the card?
Main card
Jon Jones vs Thiago Santos
Amanda Nunes vs Holly Holm
Jorge Masvidal vs Ben Askren
Luke Rockhold vs Jan Blachowicz
Diego Sanchez vs Michael Chiesa
Preliminary card
Gilbert Melendez vs Arnold Allen
Claudia Gadelha vs Randa Markos
Alejandro Perez vs Yadong Song
Early Preliminary card
Edmen Shahbazyan vs Jack Marshman
Ismail Naurdiev vs Chance Rencountre
Julia Avila vs Pannie Kianzad
Betting odds
Jones vs Santos
Jones 1/7
Santos 9/2
Nunes vs Holm
Nunes 2/7
Holm 5/2
*Click here to bet with Betfair
Latest news
Jon Jones is open to fighting Daniel Cormier for a third time - if the fans demand it.
Jones has beaten his rival twice but his second victory was ruled a no contest after a failed drug test.
The third installment could happen at heavyweight, but Jones insists he has business to take care of at 205lb.
He told ESPN: "There’s still a lot of interest in me fighting Daniel Cormier for some reason.
I don’t really know what it is. The first time I won by unanimous decision and the second time I won by knockout so I don’t know why people want to see us fight again so bad but at heavyweight I guess that would add a few different factors.
"So yeah, if that’s the fight the world wants to see, I know one thing about the UFC, we give the fans what they want.
"There’s a lot of big fights that people want to see me have in the light heavyweight division so there’s really no need for me to go to heavyweight.
"I’m doing well where I’m at, I’m making weight really easily and I feel like when the UFC approaches me about a fight they feel will be a megafight and they come with the numbers that would make sense for me to do that, I’ll totally do it."
