Lance Armstrong is currently under investigation for illegal, performance-enhancing drug use and doping during his bicycle career with the U.S. Postal Service Team. Armstrong came under investigation after disgraced former professional cyclist Floyd Landis accused his former teammate of using drugs and doping throughout their time on the U.S. Postal Team.

Landis was stripped of his 2006 Tour de France title after it was found that he used performance-enhancing drugs, and while he continually tried to fight the accusation and finding, he eventually admitted cheating and, at the same time, sent letters to investigators accusing other cyclists of cheating.

The seven-time Tour de France winner is also under investigation for fraud because Landis accused him and the members of the U.S. Postal Service team of selling bikes given to them by the Postal Service to fund their doping program.