Lance Armstrong believes French doping officials may ban him from riding in this summer's Tour de France over a report that he violated protocols during a recent drug test.
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French may ban Armstrong
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Jamaican athlete tests positive for banned substance
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Club may lose race meetings
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Air France defends its safety record
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Gatlin to appeal doping suspension
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USADA prepare evidence against Lance Armstrong
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Armstrong determined to win eighth Tour de France
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Alberto Contador 'to receive one year ban'
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Contador tests positive
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Lance Armstrong returns to professional cycling
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Jockey Dettori to face inquiry over ``positive test''
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Eric Lamaze threatens to stop riding for Canada
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Lance Armstrong fractures collarbone
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Lance Armstrong 'confesses to Oprah Winfrey that he used drugs'
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Lance Armstrong cyclist hits back at Contador
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Lance Armstrong asks Texas court to dismiss lawsuit
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Dutrow suspended 30 days for violating doping rules