After winning the Tour de France seven times in a row, Lance Armstrong might well have been the greatest sportsman of all time.Not only had he won the most coveted of all cycling races, he had done so after recovering from advanced testicular cancer.
Lance Armstrong maintains he has never used performance enhancing drugs.
He claims he has never tested positive in hundreds of drug tests.
Many who know him well now say he is lying.
"The doctor started asking Lance a couple of banal questions, and then boom, have you ever used any performance enhancing drugs? Lance, hanging onto his IV, rattled off EPO, testosterone, cortisone, growth hormone and steroids. My eyes popped out of my head."
Next on Four Corners reporter Quentin McDermott talks to people who worked for Armstrong, rode with him and some who raced against him. What they reveal will shock you.