Chad Mendes alerted to potential doping violation

UFC featherweight Chad Mendes has been notified by the United States Anti-Doping Agency of a potential violation stemming from an out-of-competition sample collection, the UFC said in a statement Friday.

Mendes, 31, is 17-4 in the promotion. He last fought in December, losing by first-round knockout to Frankie Edgar in "The Ultimate Fighter 22 Finale."

Mendes has no fights currently scheduled.