CJ Ujah, a British sprinter, has been banned for 22 months for a doping violation at the Tokyo Olympics last year.

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Ujah had been provisionally suspended following the use of Ostarine and S-23, both of which are prohibited by the World Anti-Doping Agency.

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Following the men's 4x100m relay final, in which Britain finished second to Italy, were detected in his A and B samples.

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The AIU, which oversees international athletics integrity issues such as doping, said Ujah's ban took effect on August 6.

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In February, Ujah and his teammates Zharnel Hughes, Richard Kilty, and Nethaneel Mitchell-Blake were stripped of their silver medal.

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The sprinter had stated that he had "not knowingly or intentionally doped," but Kilty stated in February that he had.

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British Athletics and UK Anti-Doping had "hammered home" their rules, asking athletes not to use uncertified supplements. 

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The AIU announcement, according to UKAD, marked another sad chapter in the case and for British sport.

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"Every national governing body, athlete, coach, and member of support staff should take this case as a wake-up call that doping poses a serious threat 

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"This case emphasises the importance of all sports redoubling their commitment to anti-doping responsibilities."

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