They are titans in the world of technology.
But now the simmering feud between Elon Musk and Mark Zuckerberg has bubbled over and the billionaires have agreed to face each other in a cage fight.
Musk, who took control of Twitter in October, tweeted that he was ‘up for a cage fight’ with Meta boss Zuckerberg.
Zuckerberg took a screenshot of Musk’s tweet and replied ‘send me location’, the catchphrase of the unbeaten mixed martial arts champion Khabib Nurmagomedov.

Musk, who took control of Twitter in October, tweeted that he was ‘up for a cage fight’ with Meta boss Zuckerberg

Zuckerberg took a screenshot of Musk’s tweet and replied ‘send me location’, the catchphrase of the unbeaten mixed martial arts champion Khabib Nurmagomedov
The Twitter boss, 51, joked: ‘I have this great move that I call “The Walrus”, where I just lie on top of my opponent and do nothing.’
He added: ‘I almost never work out, except for picking up my kids and throwing them in the air.’
Zuckerberg, 39, would appear to be in good shape after winning his first jiu-jitsu competition recently.
Musk, a father of ten, has trained in Kyokushin karate, taekwondo, judo and ‘Brazilian jiu-jitsu briefly’, and once shared a photo of himself grappling a sumo wrestler.
Earlier this month, father-of-three Zuckerberg rubbished a report in The New York Times claiming he was knocked out during a jiu-jitsu fight.
The official said he heard the tech chief executive snoring and thought he had passed out during a chokehold.
But Zuckerberg told the publication the referee had mistaken his grunting for snoring.
‘That never happened,’ Zuckerberg wrote in an email.
Musk has form for challenging prominent people to fights that do not come to pass.
Last year, he challenged the Russian president, a judo blackbelt. ‘Stakes are Ukraine,’ he said.
The talk of a fight comes amid rumours that Zuckerberg is preparing to create a new app to rival Twitter, set to be called Threads.
The new platform, currently named Project 92, will reportedly have buttons similar to Twitter’s ‘like’ and ‘retweet’ functions, and a 500-character limit on posts.