British sprinter Chijindu Ujah was banned for 22 months on Monday after testing positive for two prohibited substances during the Tokyo Olympics last year.
Ujah tested positive for ostarine and S-23 after the final of the 4x100-meter relay, in which Britain finished second. Ujah has already been stripped of his silver medal, as have teammates Zharnel Hughes, Richard Kilty and Nethaneel Mitchell-Blake.