CAS said the ban that starts Friday is cut for the more than two months of a provisional suspension Knighton served last year. The ban should expire in early July 2028, just days before the LA Olympics open.
Knighton had been cleared last year to run at the Paris Olympics when he was judged not at fault for a positive test for trenbolone, a steroid used in livestock farming.
The U.S. Anti-Doping Agency prosecuted Knighton’s original case and accepted the “no-fault” ruling based on the explanation he was contaminated by oxtail from a bakery in central Florida.
In Paris, Knighton placed fourth in the 200 meters for the second straight Summer Games. CAS said he is not disqualified from that race.
Knighton did not qualify in the 200 for the U.S. team at the world championships which open Saturday in Tokyo. He has silver and bronze medals in the 200 from the past two worlds.
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