Alistair and Jonny Brownlee: Meet the Athlete

Medal-winning Olympic triathletes Alistair and Jonny Brownlee discuss sibling rivalry and what it takes to be the best. The reigning Olympic and former World and European champions from Yorkshire also talk about their new book, Swim, Bike, Run — Our Triathlon Story, which documents their successes and advises on technique, nutrition, injury and mental approach.