The anticipation is building for this weekend’s UFC 239 main event, which will pit dominant champion Jon Jones (24-1) against ferocious challenger Thiago “Marreta” Santos (21-6).

As is seemingly always the case, ‘Bones’ is on top as the bookie favorite to win. The oddsmakers have identified him as -600 favorite, meaning a successful $600 bet on Jon Jones would win you $100. Marreta, meanwhile, is a significant +450 underdog (bet $100 to win $450).

The co-main event of UFC 239 will see former champion Holly Holm take on two-division champ Amanda Nunes for the UFC bantamweight title. Like Jon Jones, Amanda Nunes is a heavyweight favorite to retain her title. She’s sitting at -340 (bet $340 to win $100), while Holm is at +280 (bet $100 to win $280).

Here are the odds for this weekend’s UFC 239 event, featuring Jon Jones, Amanda Nunes and a host of other stars (via MMAMania).

UFC 239 Main Cards Odds:

Jon Jones (-600) vs. Thiago Santos (+450)
Amanda Nunes (-340) vs. Holly Holm (+280)
Ben Askren (-245) vs. Jorge Masvidal (+205)
Luke Rockhold (-225) vs. Jan Blachowicz (+185)
Michael Chiesa (-335) vs. Diego Sanchez (+275)

UFC 239 Undercard Odds:

Arnold Allen (-370) vs. Gilbert Melendez (+310)
Claudia Gadelha (-225) vs. Randa Markos (+185)
Marlon Vera (N/A) vs. Nohelin Hernandez (N/A)
Song Yadong (-240) vs. Alejandro Perez (+200)
Edmen Shahbazyan (-600) vs. Jack Marshman (+450)
Ismail Naurdiev (-500) vs. Chance Rencountre (+400)
Julia Avila (-240) vs. Pannie Kianzad (+200)

Who are you placing your bets on at UFC 239? Is anyone picking Thiago Santos to upset Jon Jones in the evenings main event? Let us know in the comments, and make sure to check out BJPenn.com for coverage of everything that goes down at UFC 239 tomorrow night.

This article first appeared on BJPENN.COM on 7/5/2019.