Mark Zuckerberg's wife goes viral for hilarious reaction while watching UFC event

Mark Zuckerberg and his family were spotted sitting cageside at a UFC card this weekend – and it looked like they were the only ones in attendance.

That was despite UFC president denying claims that the Facebook founder had rented out the entire arena for himself.

Either way, Zuckerberg - who has recently discovered his love for mixed martial arts - appeared to be enjoying it.

The same couldn't be said for his wife, though.

Footage has gone viral online showing Priscilla Chan squirming in her seat as two fighters exchange blows inside the octagon.

To make things even funnier, while poor Priscilla covers her eyes, her husband could be seen standing up and cheering the bouts.

During the build-up to the UFC Fight Night in Las Vegas, it was announced that the event would be closed off from fans and the media – something the organisation hasn't done before.

“We just figured that you guys have been so busy lately, that we give you guys a night off,” White said.

“You guys are here on Tuesdays, you’re here on Saturdays … we need to give you guys a break. You’re welcome.”

And the card's headliner Mackenzie Dern added more fuel to the fire by claiming that a certain billionaire businessman has, in fact, rented the entire venue out for himself.

Speaking at UFC media day, she said: "I know Mark Zuckerberg rented out the whole event.

"I know he’ll be there, but I don’t know if it’s literally him, his wife or if he’ll have friends - some type of party. But from someone who wanted a main event with a crowd, [it’s] going to be very, very private."

Upon hearing this, White was quick to rubbish the rumours, tweeting: “Zuckerberg did NOT rent out the UFC Apex. That's total bulls***”.

Well, not to call Uncle Dana a liar or anything, but Zuckerberg was definitely present – even if he didn't personally rent out the space.

And by the looks of things, he was absolutely loving the show.

The wider UFC community took to social media to have their say on Zuck's surprise appearance with some praising it and others calling the cameo out.