At an event in Russia this past weekend, Nurmagomedov called out boxing legend Floyd Mayweather, speaking on camera next to Mayweather Promotions CEO Leonard Ellerbe.

Khabib Nurmagomedov Challenges Floyd Mayweather to a Fight https://t.co/UULYQH17O5 pic.twitter.com/27oP0gIygM — SportsGossip.com (@sportsgossip) October 15, 2018

“Let’s go, Floyd, we have to fight now,” the Dagestan native said. “50-0 vs. 27-0, two guys who never lose. Let’s go, why not? Because in the jungle, there’s only one king. Of course I’m the king because he cannot drop McGregor, but I drop him easily. Let’s go.”

Mayweather took to social media on Monday morning to respond. He posted on Instagram: “CBS, Showtime and MGM Grand get the checkbook out!”

CBS, Showtime and MGM Grand get the checkbook out!

A fight against Nurmagomedov would be Mayweather’s second against a UFC fighter.

I’m pretty sure Conor McGregor can’t be too happy about this.

What about his payday?