Ekaterina Gnidenko
Ekaterina Valeryevna Gnidenko (; born 11 December 1992 in Tula) is a Russian track cyclist. At the 2012 Summer Olympics, she competed in the Women's sprint but was subsequently found to have been using turinabol a banned product and was disqualified. Gnidenko later appealed her disqualification to the Court of Arbitration for Sport (CAS), seeking to have her disqualification from the 2012 Olympics overturned. On 26 July 2018, the CAS dismissed Gnidenko's appeal, upholding her disqualification.