The appeal by Confederation of African Football (Caf) president Ahmad against his five-year ban from football by Fifa has begun at the Court of Arbitration for Sport (Cas) in Switzerland.
Ahmad is hoping to overturn the ban in a bid to be registered for next week's Caf presidential elections.
Ahmad was dramatically restored to the Caf presidency three months into his ban after Cas effectively said the possibility of his winning his appeal should not prevent him from being able to campaign for the elections, issuing a preliminary ruling.
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