Sports Matters 08/24/15

Usain Bolt on doping, ‘I cannot do it by myself’

As doping allegations take the spotlight of 2015 Beijing World Championships, sprinting champion Usain Bolt has had enough. Investigative Reporter David Epstein discusses “suspicious” blood test results from 146 medalists between 2001 and 2012. ... more Duration: {{video.duration.momentjs}}