London 2012 400m hurdle gold medalist Natalia Antyukh stripped of medal
Antyukh tested positive for banned substances leading to her disqualification and the stripping of her 2012 gold medal
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Colombian cyclist Nairo Quintana disqualified from 2022 Tour de France
Quintana's dried blood samples revealed traces of the banned substance, Tramadol, which was banned due to medical and safety reasons in 2019.
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IOC sanctions one athlete for failing anti-doping tests at London 2012
Decision in the Case of Sara Errani
The 2017 Tennis Anti-Doping Program has found that Sara Errani committed has disqualified the affected results and imposed a period of ineligibility of two months.
IOC sanctions Tatyana Lysenko for failing anti-doping test at London 2012
IOC today announced that Tatyana Lysenko has been disqualified from the Olympic Games London 2012.
Decision in the case of Maria Sharapova
An Independent Tribunal appointed under Article 8.1 of the 2016 Tennis Anti-Doping Programme (the "Programme") has found that Maria Sharapova committed an Anti-Doping Rule Violation under Article 2.1 of the Programme and as a consequence has disqualified the affected results and imposed a period of ineligibility of two years, commencing on 26 January 2016.
USA men's 4x100m relay team disqualified from the 2012 London Olympic Games
Following the sanctions received by Tyson Gay from USA Track and Field (USATF), and based upon the rules of the International Association of Athletics Federations (IAAF), the USA men’s 4 x 100m relay team, who won silver at the 2012 London Olympic Games, has been disqualified.
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