WADA challenges Mexico case
LAUSANNE, Switzerland -- The World Anti-Doping Agency says it will challenge the Mexico Football Federation for clearing five players of doping by accepting the claim that contaminated meat caused their positive tests for clenbuterol.
WADA said it appealed to the Court of Arbitration for Sport and would not comment further.
The five players tested positive for the banned anabolic agent at a May training camp before the Gold Cup.
WADA also is challenging 2010 Tour de France winner Alberto Contador at CAS, after he blamed contaminated meat for a positive test for clenbuterol.
Copyright 2011 by The Associated Press
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