Positive Test http://wuky.org en Lexington's Tyson Gay Tests Positive For Banned Substance http://wuky.org/post/lexingtons-tyson-gay-tests-positive-banned-substance <p><strong>AMSTERDAM &nbsp;- </strong>American 100-meter record holder Tyson Gay has tested positive for a banned substance and says he will pull out of the world championships next month in Moscow.</p><p></p><p></p><p></p><p>Gay isn't revealing the substance, but he says he was notified by the U.S. Anti-Doping Agency on Friday that a sample came back positive from an out-of-competition test May 16. He says he will have his "B'' sample tested soon.</p> Mon, 15 Jul 2013 15:01:46 +0000 WUKY Staff & Wire Reports 34499 at http://wuky.org Lexington's Tyson Gay Tests Positive For Banned Substance