Knockout artist Roy "Big Country" Nelson faces off against Matt Mitrione, his former The Ultimate Fighter teammate. Plus, TUF finalists Colton Smith and Mike Ricci compete for a six-figure UFC contract.The UFC TUF 16 Finale will be held Saturday, December 15, 2012, in Las Vegas. In the main event, TUF 16 coach Roy Nelson will fight late replacement Matt Mitrione, who steps in for the injured Shane Carwin. The co-main event will feature the finals of the 32-man, single-elimination TUF 16 tournament between Canadian Mike Ricci and American Colton Smith, an active-duty Army Ranger. Ricci was part of Team Carwin on the show, while Smith was a member of Team Nelson.