The International Cycling Union says Cobo has been found "guilty of an anti-doping rule violation." The UCI says the case was "based on abnormalities from 2009 and 2011 detected in his biological passport."
The now-retired 38-year-old Spanish rider won the three-week Vuelta for his first Grand Tour title in September 2011, finishing 13 seconds ahead of Froome. Bradley Wiggins was third. The UCI says Cobo has a one-month deadline to file an appeal at the Court of Arbitration for Sport.
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