Armstrong's 'confession'

Disgraced cyclist Lance Armstrong admitted he took performance enhancing drugs during his reign of the Tour de France. The 41-year-old confessed to TV host Oprah after he was stripped of all his titles by world cycling body UCI, and completely discredited in a massive investigation by the USADA.

Photo by Getty Images Feb 25, 2013

Summer of controversy

Check out some of the more controversial moments that have engulfed sport during the summer.