(CNN)Fresh from defending his Lightweight title against Conor McGregor, the UFC's Khabib Nurmagomedov has set his sights on another undefeated fighter in boxing's Floyd Mayweather -- who in turn welcomed the challenge.
'Only one king in the jungle': UFC's Khabib Nurmagomedov targets Mayweather bout
In a video posted on Instagram by the flamboyant boxer's promoter Leonard Ellerbe, the Russian fighter challenged Mayweather -- who himself boxed McGregor in a unique head-to-head last August -- to take him on next.
"Let's go Floyd, we have to fight now," a smiling Nurmagomedov says in the video, which Ellerbe says was shot at a fight event in Russia.
"50-0 versus 27-0, two guys (who) never lose. Let's go, why not? Because, in the jungle (there's) only one king. Only one king... of course, I'm the king. Because, he cannot drop... McGregor but I drop him easily. That's why, let's go."