Report: Samples May Suggest Alberto Contador Was Doping
A urine sample taken on July 20 showed a plasticizer -- found in intravenous bags like the ones used for endurance-boosting blood transfusions. Contador tested positive for clenbuterol one day later, and was provisionally suspended by the International Cycling Union last week.
Reports out of France and Germany last week also said traces of a plasticizer were found in Contador's urine.
Contador has repeatedly denied doping or having a transfusion, instead blaming the clenbuterol on contaminated meat.
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