However the Spanish club have lodged an appeal with the Court of Arbitration for Sport against UEFA's decision with a hearing set for May 14 and decision expected sometime in June.

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If Mr. Armstrong asks for a hearing, it is unclear how many of the new witnesses would agree to testify before an arbitration panel in the case.

WSJ: Lance Armstrong's Ex-Teammates Cooperated in Doping Case

Athletes who are charged by USADA can request a hearing, and if they lose, they have the ability to appeal to the Court of Arbitration for Sport, an international arbitration body.

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