Anticipation is building about whom undefeated 27-0 Russian UFC champ Khabib Nurmagomedov will take on next, with UFC President Dana White adding fuel to the fire by telling would-be contender and US boxing legend Floyd Mayweather that he would have to fight Khabib under UFC rules.

Axar.az reports citing Sputnik that speaking to TMZ Sports on Tuesday, White said that if undefeated US boxing legend Mayweather wants to fight Khabib, he'd have to sign with the UFC and fight in the octagon.

"Listen, if Mayweather wants to fight, come fight. You fight in the UFC. We're not boxing him. We did that once. That's over. You wanna fight? You come fight…a real fight" the UFC boss said.

White's comments, combined with the slew of rumors swirling around a possible Nurmagomedov-Mayweather fight after Khabib called Floyd out with his "in the jungle, there can be only one king" remark, sparked renewed speculation on social media on whether the undefeated boxer would take the challenge.

Most users think 'Money' would be crushed if he agreed.