Chael Sonnen and Wanderlei Silva, who have become fierce rivals in the last few months, including a confrontation at the September Mr. Olympia event. Sonnen has a fight to worry about before his coaching gig, as he will be fighting Rashad Evans at UFC 167. Silva has previously coached on TUF: Brazil, but that was opposite Vitor Belfort in the first season of the show. Tryouts for the reality show are set for November 11th, no other information about the show is available as of this writing.