Cyclist Alberto Contador claimed that he failed a drug test because he ate meat tainted with the drug clenbuterol, but officials at the World Anti-Doping Agency say that they have heard that excuse from athletes before–and they don’t believe it.WADA director general David Howman told reporters that this defence has been tried in other cases and been rejected. Without evidence of the contamination, its pretty much impossible for an athlete to prove that claim.
It also wouldn’t explain why another test revealed plastic residue in the Tour de France winner’s blood, which is often a tell-tale sign of blood doping. The plastic comes from the bags used in the blood transfusions.
Contador was suspended from cycling last month and his case is still being investigated.
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