The fight has yet to be officially announced by the WEC, however, MMA Weekly is citing “sources close to the fight” as its source.

McCullough is a former WEC lightweight champion who lost the title at WEC 32 this past February when he suffered a third round TKO against current champ Jamie Varner. He returned to the win column after recording a split decision victory over Kenneth Alexander at WEC 34 this past June.

Cerrone, considered one of the top lightweight prospects in all of MMA, is a perfect 8-0 in his young mixed martial arts career. He made his WEC debut last September, where he defeated Alexander at 0:56 of round 1. However, the decision was eventually ruled as no contest after the Nevada State Athletic Commission suspended Cerrone for testing positive for a banned diuretic.

He returned from his suspension this past June on the same show in which McCullough defeated Alexander. In that fight, it took Cerrone just 1:30 into the first round to submit late replacement Danny Castillo with an armbar.

A win by Cerrone over McCullough could put him next in line for a shot at the WEC lightweight title.

The Sept. 10 event will be headlined by the return of Paulo Filho, who will be defending his WEC middleweight title in a rematch vs. Chael Sonnen. Also, according to MMA Weekly, the show could be headlined by a WEC featherweight title defense by Urijah Faber against Mike Brown.