Nigerian sprinter Blessing Okagbare has been given a 10-year ban for “multiple breaches of anti-doping rules”.
A statement from the Athletics Integrity Unit (AIU) said the 33-year-old was banned for five years for the use of multiple prohibited substances and five for not cooperating with the investigation.
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.