Lance Armstrong: Drug Drama

There’s no doubt he ruled the cycling world with seven Tour De France titles, but now Lance Armstrong is being called out for supposedly using performance-enhancing drugs.

According to his former cycling teammate Tyler Hamilton, Armstrong relied on a drug called EPO to help him prepare for races in 1999-2001.

Hamilton told “60 Minutes,” "I saw it in his refrigerator and I saw him inject it more than one time, like we all did many, many times."

Armstrong quickly answered the charges via Twitter, declaring, "20+ year career. 500 drug controls worldwide, in and out of competition. Never a failed test. I rest my case."