#2 Lance Armstrong (USA)
Lance Armstrong was perhaps the most famous name who was a dope offender in the multiple doping scandals that have plagued the sport of cycling since the late 90s. The once-legendary cyclist and cancer survivor had won 7 consecutive Tour De France (the most prestigious cycling event in the world) and had competed in the 2000 Sydney Olympics, where he had won a Bronze medal.
Armstrong initially denied his involvement in using banned substances but later, after an extensive investigation, gave in and admitted to the use of performance-enhancing drugs throughout the majority of his cycling career. This breach in doping standards saw him being stripped of all his Tour De France titles.
Soon after, the IOC asked him to return his Olympics medal and he duly obliged, thus tarnishing his legacy and ruining his image in the world of sports.
