Mark Zuckerberg is ready to take on Elon Musk.

On Tuesday night (June 20), the 51-year-old Tesla CEO jokingly said that he’d be up for fighting Mark in a cage match.

A day later, Mark responded with a post on Instagram.

Keep reading to find out what he said…

The 39-year-old Facebook founder posted a screenshot of Elon‘s Tweet on his Instagram Story alongside the caption: “Send Me Location.” See the post in the gallery below.

The Verge then followed up with a spokesperson from Meta about whether Mark would actually go through with the fight, who said that “[Mark's] story speaks for itself.”

While it’s safe to assume that the pair are just joking around, Mark has spent quite a bit of his spare time practicing mixed martial arts. In fact, he fought against UFC champion Alexander Volkanovski at Meta HQ back in February of this year.