An Olympic athlete who took part in the 2012 London Olympic Games has reportedly had her medal stripped.
At the time, the 1500m athletics event during London 2012 was branded as one of the dirtiest in history.
As reported by The Guardian, prior to the most recent decision, four athletes from the 12 finishers in the final had already been disqualified for retrospective doping offences.
Now, it has been claimed that Tatyana Tomashova has had her silver medal taken away.
The report stated: "Tomashova is the latest athlete to be punished after analysis of her data held in the Moscow anti-doping laboratory showed she had been taking banned drugs.
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"The Russian had finished fourth but was moved up after the first two in the race, Turkey’s Asli Cakir Alptekin and Gamze Bulut, were banned for blood doping and had their results annulled in 2015 and 2017 respectively."
In addition, Natalia Kareiva of Belarus and Russia's Yekaterina Kostetskaya, who finished seventh and ninth respectively, were also banned for doping.
A statement from CAS said: "Tomashova’s sanction stemmed from AIU charges based on historical data, showing evidence of doping in Russian athletics, from the Laboratory Information Management System at the former Moscow Laboratory.
"The International Olympic Committee may now proceed with the reallocation of medals and the update of the IOC database."
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This means that Abeda Aregawi of Sweden has moved up to the silver medal position and Team USA's Shannon Rowbury the bronze.
Speaking after the race back in 2012, Team GB star Lisa Dobriskey said: "I’ll probably get into trouble for saying this, but I don’t believe I’m competing on a level playing field."
In 2016, she said: "I wanted to cry and I needed to get out of the stadium.
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"It should have been a joyous moment in front of my home crowd but I felt humiliated. I just wanted the ground to swallow me up. I felt I had to apologise for my performance to my family and friends. I felt I’d let people down."
Dobriskey has now been bumped up to fifth and fellow Brit Laura Weightman has also moved up to sixth.
Marcus Chan