Cristiano Ronaldo was left restless as he watched the blockbuster bout between heavyweight champion, Tyson Fury and MMA star, Francis Ngannou in Saudi Arabia on Saturday night.

The Al-Nassr forward was one of the high-profile personalities in attendance for the historic fight.

Both Fury and Ngannou are friends of the former Manchester United star, making it somewhat difficult for the five-time Ballon d'Or winner to pick a side.

In a video that has since gone viral on social media, Ronaldo is seen going through different emotions as he watched the fighters battle it out.

This included a deep breath out after a particular onslaught by the Cameroonian.

Fury won the fight via a split decision after two judges scored 96-93 and 95-94 in his favour while the other had it 95-94 for Ngannou.

"That definitely wasn't in the script," said Fury after the fight, as quoted by Sky Sports. "He's given me probably one of my toughest fights in the last 10 years."
The Gypsy King lauded the Cameroonian as a 'hell of a fighter'.

"...Strong, big puncher, and a lot better boxer than we all thought he would be. He's a very awkward man and he's a good puncher and I respect him a lot."