Tech rivals Elon Musk and Mark Zuckerberg often try to outdo each other in business. They compete with each other to amass the most money or attract the most followers. Their rivalry intensified this week as the two multi-billionaires agreed to a fist fight. Twitter owner Mr Musk challenged Mr Zuckerberg to a "cage match". It is reported that the punch-up between the richest and tenth richest men in the world is because Meta's Zuckerberg wants to create a social media platform to rival Twitter. The fight could take place in a mixed martial arts cage in Las Vegas.

The Ultimate Fighting Championship (UFC) could arrange the fight. The UFC president said the event could be the most profitable ever. He said: "This would be the biggest fight in history.…It would break all pay-per-view records." Viewers might have to pay $100 to watch the bout. It is unclear who is favourite to win the fight. Zuckerberg trains in martial arts and recently won gold in a tournament. Musk joked about his secret weapon. He said: "I have this great move that I call 'The Walrus'. I just lie on top of my opponent and do nothing."