Dana White has made it clear that his relationship with Roy Nelson hasn't been the smoothest. He did choose Nelson to be a coach on The Ultimate Fighter 16 though, facing off with Shane Carwin. Nelson posted a lot of coaches that he wants to use on the show, but according to him, three of them won't be seeing any screen time on FX because the UFC didn't allow them to be used. Roy put out the list via his Facebook page:
COACHES: Here are my Assistant/Guest Coaches the non-ufc coaches will be helping but not on the set because they are black, criminals, white, Olympian, Great TV ... (disclaimer I have know idea, just opinion) NON-UFC ALLOWED Muhammed Lawal Kurt Angle Victor Conte UFC ALLOWED Royce Gracie James Johnson Jeff Mayweather George St. Pierre Nick Diaz Nate Diaz Rashad Evans Forrest Griffin Chael Sonnen Jake Shields Gilbert Melendez Martin Kampmann Amir Sadollah Mike Pyle Gray Maynard Ron Frazier Anthony Brown, I am a student first, teacher second. Let give theses kids an opportunity of a life time. A UFC SUPER CAMP
Lawal's omission is presumably due to his Bellator/TNA contract, and Angle's probably on the sidelines because of his own TNA deal (TNA airs on Spike TV). Conte, the founder of BALCO Laboratories who served time in prison for distribution of steroids, is now an advocate of getting rid of PED's in sports.
Nelson's manager Mike Kogan told MMA Fighting that everyone on the "allowed list" is already scheduled to help out, but it's unclear how many of them will actually be used on the show.