Salwa Eid Naser, the world 400m champion from Bahrain, is banned through the Tokyo Olympics and for two years total over a case of missed drug tests in 2019.
The Court of Arbitration for Sport (CAS) upheld appeals from World Athletics and the World Anti-Doping Agency, which challenged an October 2020 ruling that threw out one of Naser’s three missed tests in a 12-month span that otherwise would have prompted a one-to-two-year ban.
That October 2020 ruling came from an Athletics Integrity Unit disciplinary tribunal.
Naser’s ban begins today and runs into early 2023.