Lance Armstrong is stepping down as chairman of the Livestrong cancer charity he founded in 1997 after recovering from the disease, a spokeswoman for the organization confirmed .
The move comes a week after the U.S. Anti-Doping Agency said it had uncovered overwhelming evidence of Armstrong's involvement in a sophisticated doping program while a professional cyclist.
Armstrong found out he had testicular cancer at age 25 when he was emerging as a rising star among cyclists. He started a small group to raise money for cancer called the Lance Armstrong Foundation in 1997. Since then, 84 million bright yellow Livestrong wristbands have been distributed.
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