A Russian cyclist and a Turkish boxer have been provisionally suspended after their doping samples from the 2012 London Olympics came back positive in retesting.

Track cyclist Yekaterina Gnidenko and boxer Adem Kilicci both tested positive for anabolic steroids, the governing bodies of their sports said on Thursday. The Turkish boxing federation and Kilicci, who lost in the quarterfinals of the middleweight division in London, have been notified of the findings and his suspension.

The Turkish Olympic Committee remarked it was extremely disappointed by the positive test of Kilicci. In a statement, the committed said we will now follow the official procedure and will announce appropriate action in due course. The statement further reads we in the meantime are redoubling our efforts to encourage more rigorous testing in parallel with greater education of all athletes and their entourages throughout Turkish sport.

Gnidenko was a late substitute in the 2012 Olympic sprint after Russian teammate Viktoria Baranova failed a doping test and was expelled from the games. Gnidenko competed in the women’s sprint and keirin at the 2012 Games but did not won a medal and now faces being stripped of her keirin silver medal from the World Championships later that year.

AIBA said Kilicci had qualified for Rio, while Gnidenko is not listed on the Russian national team squad list for this season.

In another development, a Jamaican athlete is among those who have failed a doping test after samples were re-examined from the 2008 Beijing Olympic Games. According to sources, the athlete returned an adverse analytical finding for the A-sample and the result of the B-sample test is expected from the World Anti-Doping Agency (WADA) accredited laboratory in Lausanne within a few days. Jamaica Athletics Administrative Association president Dr. Warren Blake said his organization had not been notified of any rule violation, while Jamaica Olympic Association president Michael Fennell declined comment.

Jamaica won six gold, three silver, and two bronze medals at the 2008 Olympics, all in athletics.

Last month, the IOC said 31 athletes from six different sports and 12 countries had tested positive in the retesting of 2008 samples. The Olympics body also said it has initiated disciplinary action against the unidentified athletes who would not be allowed to compete in August’s Rio de Janeiro games.

Russia admitted that 14 athletes belonged to it. The country, despite making tall claims about fight against doping, is not learning its lessons yet. Two-time Olympic champion Alexander Zubkov has been elected president of Russia’s troubled bobsleigh federation. Zubkov was among those involved in an elaborate doping cover-up scheme during the Sochi Games in 2014. Russian Sports minister Vitaly Mutko welcomed Zubkov’s election and remarked professionals from the sports world should be in charge of sports in the country. The Russian bobsleigh federation demoted the federation’s former chief, Georgy Bedzhamov, who requested political asylum in Europe after fleeing Russia earlier this year. Bedzhamov, the co-owner of Vneshprombank, left the country after the central bank put the lender into temporary administration. Bedzhamov’s sister Larisa Markus, president of Vneshprombank, has been accused of fraud and was detained.

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