Triple wrestling champion appeals doping punishment
The IOC stripped him of his 2008 medal earlier this month after a reanalysis of his samples tested positive for the banned steroids.
Taymazov, 37, won gold in Athens 2004, Beijing 2008 and London 2012 and is a double world champion.
The IOC stripped him of his 2008 medal earlier this month after a reanalysis of his samples tested positive for the banned steroids turinabol and stanozolol.
The Court of Arbitration for Sport said Taymazov filed an appeal "seeking an annulment of the IOC decision".
The Lausanne-based court, which typically has the final word in sport disputes, said an arbitration process was ongoing.
The IOC has been retesting stored samples from the 2008 Beijing Games and London 2012 in a renewed bid to crack down on doping that has tarnished the Olympics.
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