In an exclusive interview, the taekwondo bronze medallist from the 2016 Olympics Bianca Walkden opens up about how confidence was key to her becoming a... three-time world champion: "I'm obsessed with being the best. Even if I know I'm not the best, I'll pretend and die trying to be the best." Find out why the Briton was devastated after finishing third at Rio, and how having two-time Olympic champion Jade Jones as a flatmate will help her with her goal at Tokyo 2020.