USADA suspends Nguyen for doping violation

American taekwondo athlete Jonathan Nguyen has been handed a six-month doping suspension, the U.S. Anti-Doping Agency announced Friday.

Nguyen tested positive for the banned stimulant methylhexaneamine after a urine sample was taken at the U.S. Open International competition on February 20.

The ban began on March 29 when he accepted a provisional ban. The 25-year-old from Arizona was disqualified from all results from the date of the positive test.

A reduced sanction can result since the substance is a specified substance under World Anti-Doping Agency rules.

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