The Las Vegas Sun first reported the news.
Duffee was cut back in 2010 after a knockout loss to Mike Russow in a fight that Duffee dominated up until he was put down in the third. Dana White stated that Duffee’s attitude toward the organization was the main catalyst in his release.
Since being released by the UFC, Duffee has only faced two opponents, Alistair Overeem and Neil Grove. He split the two fights with a 19-second loss to Overeem, at Dynamite!!! 2010, and a first round TKO over Grove.