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Christophe Ena, File, Associated Press
FILE - in this July 25, 2010 file photo, three-time Tour de France winner Alberto Contador of Spain holds aloft the Spanish national flag during a victory lap after winning the Tour de France cycling race in Paris. he court of a Arbitration for Sport delivered the verdict Monday, 17 months after Contador returned a positive drug test in winning the 2010 Tour de France race. Contador has always claimed the positive result was from contaminated beef he eat during the race.

MADRID — Spanish cyclist Alberto Contador says he may appeal the two-year doping ban handed down by sport's highest court.

Contador says he is "innocent" and has no plans to retire despite hinting previously that he might quit if banned.

He spoke a day after the Court of Arbitration for Sport stripped him of the 2010 Tour de France title. CAS rejected his claim that his positive drug test for clenbuterol was caused by eating contaminated meat.

Contador says his lawyers are examining whether to appeal.