John Locher/Associated Press
There is no substance to rumblings of a potential boxing match between Floyd Mayweather Jr. and Khabib Nurmagomedov, according to UFC President Dana White.
"Don't pay attention to it," White told ESPN.com's Brett Okamoto on Friday.
"First of all, the Mayweather team has not approached us at all.
Khabib is under contract with the UFC.