Nigerian sprinter Blessing Okagbare has been given a 10-year ban for "multiple breaches of anti-doping rules".

Okagbare was suspended during the Tokyo Olympics after failing a drug test.

Brett Clothier, head of the AIU, said a 10-year ban was "a strong message against attempts to cheat".

Okagbare won a silver medal in the long jump at the 2008 Olympics and has also won World Championship medals in the 200m and long jump.

She was a medal contender for the women's 100m in Tokyo last year and won her heat in 11.05 seconds.

But she was ruled out of the semi-finals after the AIU said she had tested positive for a human growth hormone following an out-of-competition test on 19 July.

In October, Okagbare was charged with three anti-doping offences, which she denied.

Okagbare has 30 days to appeal against the AIU's disciplinary tribunal's decision at the Court of Arbitration for Sport (CAS).

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