The two heavyweights will meet in December, while the show debuts this Friday night on FX. The two-hour debut episode airs at 9 p.m. ET/PT.
Nelson (17-7) has never been a quiet warrior, instead saying whatever was on his mind at the time. "Big Country" even got into a war of words with UFC president Dana White, who addressed Nelson during an appearance on Inside MMA on AXS TV recently.
"This season was interesting," White said. "Roy and I don't get along too well. He's got his ideas and his way of doing things, and I have mine. He's a coach. We let him go. We let him do his thing, and you'll see how it goes."
The Ultimate Fighter 16 - which will also go by the name TUF Fridays - will feature 32 welterweights fighters for the premier episode. Sixteen will earn spots in the house, with eight being selected by Nelson and eight by Carwin.
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