Federal prosecutors are about to end a criminal investigation into seven-time Tour De France winner Lance Armstrong and will not charge him over allegations he used performance-enhancing drugs.
United States Attorney Andre Birotte Jr. says the case has been closed but didn't disclose the reason for the decision.
Investigators were looking into claims that a Swiss anti-doping laboratory had results of Armstrong's blood that were “suspicious” and “consistent with EPO use" and whether a doping program was created to keep Armstrong and his teammates ahead of the pack while they received government sponsorship from the U.S. Postal Service.
Armstrong has adamently denied that he ever participate in blood doping. However, several of Armstrong's former teammates and associates provided testimony to counter that, including Tyler Hamilton, George Hincapie and Floyd Landis.
Armstrong won the Tour de France every year from 1999-2005.
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