Floyd Mayweather is ready to come out of retirement for a nine-figure boxing match against undefeated UFC lightweight champion, Khabib Nurmagomdeov. Mayweather's company CEO, Leonard Ellerbe, recently ran into Khabib in Russia during the World Boxing Super Series and shared a video of the 27-0 UFC star asking Mayweather for a fight.

"Let's go Floyd," said Khabib with a smile. "We have to fight now: 50-0 versus 27-0. We are two guys who never lose.

"[But] in the jungle there is only one king. Of course, I am the king because he cannot drop McGregor but I drop him easily. Let's go."

TMZ Sports has since caught up with Mayweather, who told them directly, "We're fighting." He added, "I'm my own boss. I can't say what's going on on Khabib's end, but on my end we can make it happen."

Of course, Mayweather wants any potential fight to go down in the boxing ring rather than the octagon. 

"Who's the 'A-side?' He called me out so you have to come to my world," Mayweather said. "I seen in an interview, he said when he hit Conor McGregor, he knocked Conor McGregor down. He said I didn't knock Conor McGregor down. OK, Khabib. You got my leftovers. Whoop-dee-do."

The 41-year old boxer also responded to Khabib's request earlier this week by posting the following message on IG, "CBS, Showtime and MGM Grand get the checkbook out! Go to @leonardellerbe ‘s page to view Khabib Nurmagomedov challenging me. LET’S MAKE LAS VEGAS GREAT AGAIN!"