In This Corner With Brian Campbell

Brian Campbell sits down with the voice of combat sports, Mauro Ranallo ahead of Friday's Bipolar Rock 'n' Roller documentary on Showtime (9 p.m. ET). Ranallo talks about the impact bipolar disorder has had on his career and what role he hopes to play in changing lives as an advocate. Plus, interviews with WWE legend Booker T., NXT superstar Johnny Gargano, former UFC champion Bas Rutten and Showtime Sports president Stephen Espinoza on Ranallo's unique career. Learn more about your ad choices. Visit megaphone.fm/adchoices