UFC 203 Countdown takes you inside the lives and training camps of Stipe Miocic and Alistair Overeem. After ending Cleveland’s 50-year title drought, Miocic gets a high-pressure first defense in his hometown against veteran challenger Overeem. Also, Heavyweights Fabricio Werdum and Travis Browne seek an emphatic win in a rematch of their 2014 main event and former pro wrestler CM Punk grapples with the reality of his long-awaited Octagon debut, as young but experienced opponent Mickey Gall prepares to step into the spotlight.