The International Olympic Committee has released a statement saying they now want to "draw a line" under previous doping practices, following Lance Armstrong's confession.
The IOC stripped the American of his Olympic bronze medal from the Sydney Games on Thursday, and issued a statement on Friday following Armstrong's no holds barred television interview with Oprah Winfrey.
The IOC said: "There can be no place for doping in sport and the IOC unreservedly condemns the actions of Lance Armstrong and all those who seek an unfair advantage against their fellow competitors by taking drugs.
"The IOC and its partners continue to wage a strong, sophisticated and continually evolving battle against doping in sport. While not perfect, the methods are ever improving, with blood passports and the ability to test athletes 24/7 in and out of competition proving to be effective deterrents.
"But as this case highlights, the fight against doping requires the co-operation and involvement of a wide range of stakeholders, including public authorities.
"This is indeed a very sad day for sport but there is a positive side if these revelations can begin to draw a line under previous practices. It is the IOC's firm expectation that all parties involved will draw the necessary lessons from this case and continue to take all measures to ensure a level playing field for all athletes.
"We now urge Armstrong to present all the evidence he has to the appropriate anti-doping authorities so that we can bring an end to this dark episode and move forward, stronger and cleaner."