It all started when a user pointed out that Zuckerberg had won a medal in a Brazilian jiu-jitsu tournament. Musk responded that “I’m up for a cage match if he is lol.”

On Wednesday evening, Zuckerberg responded on his own platform, Instagram, by posting a story that included a screenshot of the Tweet and responded with, “Send Me Location.”

Then Musk after admiring his well toned Dad Bod responded “Vegas Octagon,” seemingly in response to Zuckerberg’s location request. “I have this great move that I call ‘The Walrus’, where I just lie on top of my opponent & do nothing,” Musk also tweeted. Ironically this is also how he ran Twitter.

Zuckerberg posted a picture of him winning his jiu-jitsu tournament and mysteriously the comments stopped. We assume that Musk didn't fancy his chances.