Carlin Isles, the World's Fastest Rugby Player, Makes Self Doubt Work in His Favor

Nine years ago, sprinter Carlin Isles stumbled across rugby on the internet and gave it a try. Today, he's the world's fastest rugby player, and the star of a U.S. squad headed to the Summer Olympics in Tokyo. On this episode, Isles talks about running down school buses as a kid, ignoring the voice in your head that says you're not good enough, and pushing past your limits. And Isles's coach explains how the man can run so fast.