German 100 metres record holder Owen Ansah is subject of an investigation by the German Anti-Doping Agency (NADA) but he is not provisionally suspended. The NADA said on Friday it has initiated proceedings against Ansah "regarding a possible Anti-Doping Rule Violation (refusing sample collection).

Source: [Yahoo Sports](https://sports.yahoo.com/articles/german-100m-record-holder-faces-160759935.html)

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