According to the Nevada State Athletic Commission, all 17 “UFC 137: Penn vs. Diaz” fighters that were drug tested produced negative results. Although 22 athletes participated in the show, only BJ Penn, Nick Diaz, Cheick Kongo, Roy Nelson, Scott Jorgensen, Hatsu Hioki, Donald Cerrone, Eliot Marshall, Brandon Vera, Chris Cammozzi, Francis Carmont, Ramsey Nijem, Danny […]