The card takes place December 15 from Las Vegas. Along with Carwin-Nelson in the main event, the finals of the TUF tournament will also go down.
Barry (7-5) was an assistant coach with Carwin on the show. He is just 1-3 in his last four bouts inside the Octagon.
Del Rosario (11-1) suffered his first professional defeat when he was stopped by Stipe Miocic earlier this year. The fight was also the UFC debut for Del Rosario.
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