Disgraced cyclist Lance Armstrong once offered to donate nearly $250,000 to anti-doping efforts, the head of the United States Anti-Doping Agency tells 60 Minutes Sports in an interview to be aired on Wednesday. Armstrong, who was stripped of his seven Tour de France titles last year after an investigation by USADA found evidence of wide-spread doping, had a representative offer the agency a large sum of money in 2004, USADA chief Travis Tygart says in the wide-ranging interview. "I was stunned," Tygart tells interviewer Scott Pelley, according to a statement issued by the program. "It was clear -- it was a clear conflict of interest for USADA.”
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