Tyson Fury is among the celebrities attending Conor McGregor's fight with Donald Cerrone.
The Notorious makes his UFC return against Cowboy in what is his first bout in over 15 months.
Fury is in Las Vegas as he prepares for his rematch with Deontay Wilder on February 22.
American football legend Tom Brady is also in attendance for the bout as is stunt performer Steve-O and rapper Ludacris.
McGregor is hoping the fight lasts a number of rounds as he returns to the Octagon.
He said: "I'm going to go in, I'm going to look to acquire rounds in here. I'm not going to be in a rush, I'm going to put pressure on Donald, I'm going to hurt Donald.
"If he can last, I'll be happy to acquire rounds here and then build on these rounds.
"I feel after the Diaz 2 build-up that I had and then the performance I had in the bout itself and then leading into the Eddie Alvarez fight. I just felt like I was in prime condition and untouchable so I'm looking to acquire that time in there again.
"Make no mistake, I'm coming with all my intent and all my skills to put Donald away."
Cerrone has more UFC wins and fights than anyone else, but has lost his last two bouts.
Cerrone described McGregor as "the whole package" ahead of their main event bout, but also claimed he will have the most fun he's ever had during the fight.
He said: "When he gets up on stage, he speaks very well. He grew this sport tremendously. The dudes a superstar
"He speaks well in front of the media. He brings a lot of eyes, a lot of attention, he's the whole package."
If you haven't already, be sure to like our Irish Mirror Sport and Irish Mirror GAA pages on Facebook and follow us on Twitter.
