Billionaire technology rivals Elon Musk and Mark Zuckerberg have agreed to fight each other in a cage match.

Twitter owner Musk, 51, said on his social media platform he was “up for a cage fight” with Zuckerberg, 39.

The Facebook founder and Meta chief executive and chairman then captioned a post “send me location” to his 12 million Instagram followers featuring a screenshot of the Tesla and SpaceX chief’s message.

In tweets to more than 144 million followers on the site, Musk then said “Vegas Octagon”, in reference to the eight-sided caged fighting arena used in the Ultimate Fighting Championship (UFC), which is based in Las Vegas.

A spokesman for Meta, the parent company of Facebook, Instagram and WhatsApp, said he had “nothing to add” to the social media posts, which went viral, with users speculating on who would win the bout and posting memes, including mocked-up posters.

Musk, who completed a $44bn (£35bn) takeover of Twitter last October, joked: “I have this great move that I call “The Walrus”, where I just lie on top of my opponent & do nothing.”

He also tweeted: “I almost never work out, except for picking up my kids & throwing them in the air.”

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Zuckerberg on the other hand last month won gold and silver medals in his first jiu-jitsu tournament.

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After competing in Redwood City, California, for the Guerrilla jiu-jitsu team, with which he trains, Zuckerberg shared the news on Instagram with photos of him posing with his coaches and tussling with opponents on the ground.

“Competed in my first jiu-jitsu tournament and won some medals 🥇🥈 for the Guerrilla jiu-jitsu team. Thanks to @davecamarillo @khaiwu @intense0ne for training me!” Zuckerberg captioned the post.

The pictures also showed Zuckerberg wearing a pair of shorts gifted to him by mixed martial arts champion Alexander Volkanovski.

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