Doping in Sport - Part 2: The sample collection process

Photo caption: China's Sun Yang celebrates winning the final of the men's 200-metre freestyle at the 2016 Summer Olympics in Rio de Janeiro, Brazil. Sun has been banned for eight years for breaking anti-doping rules and will miss the 2020 Tokyo Olympics. (File/The Associated Press)

In Part 2 of the Doping in Sport series, Dr. Aldeam Facey, outlines the sample collection process.