Tyson Gay admits to positive test
American 100-meter record holder Tyson Gay, who had promoted himself as a clean athlete, tested positive for a banned substance and said he will pull out of the world championships next month in Moscow.
Gay wouldn't reveal the substance in a phone conversation from Amsterdam on Sunday, but he said he was notified by the U.S. Anti-Doping Agency late last week that a sample came back positive from a May 16 out-of-competition test. He said he will have his "B" sample tested soon, possibly ...
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