The Ultimate Fighter: Undefeated is an installment of the Ultimate Fighting Championship (UFC)-produced reality television series The Ultimate Fighter. Tryouts were announced on November 16, 2017, scheduled for 26 days later. This season featured undefeated featherweights and lightweights. The coaches for this season were announced on January 26, 2018, pitting current UFC Heavyweight Champion Stipe Miocic against current UFC Light Heavyweight Champion Daniel Cormier. The cast was announced on the same day.