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An 18-year-old cyclist faces a doping ban after admitting using blood boosting agent EPO.
Gabriel Evans has been expelled from the London Dynamo cycling club for using the drug of choice for Lance Armstrong and his contemporaries in his victory in the British Junior 10-mile time-trial in August.
UK Anti-Doping are still to comment on the case, which is under investigation, but banned another cyclist for four years on Thursday.
Andrew Hastings tested positive for two anabolic steroids - metenolone, its metabolite and a metabolite of stanozolol - in May during a team time-trial competition.
Evans' case was alarming, though.
London Dynamo chair Paul Harknett said in a statement to Press Association Sport: "This is a sad day for us at London Dynamo.
"We only found out about Gabriel being caught with EPO in August this weekend.
"British Cycling and the UK Anti-Doping Agency are taking formal action against Gabriel and we expect details of his drug taking and the sanctions to be imposed to emerge in the near future.
"For our part, we have Gabriel's admission of guilt (made to a member of the committee) and that is enough for us to take action.
"London Dynamo has a zero tolerance approach to doping and as such Gabriel's membership has since been terminated.
"Gabriel assures us that he acted alone and sourced the drugs himself. He says he has not encouraged others to take them."
The club's welfare officer has been made available to Evans and his parents.
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