Overview

• CAS partially upheld appeals by World Athletics and WADA, reversing the prior U.S. decision that had cleared the 21-year-old sprinter.
• The sanction runs four years from March 26, 2024, with his initial suspension through April 12 credited, after he was allowed to compete at the Paris Olympics where he placed fourth in the 200 meters.
• The positive test came from an out-of-competition control that detected epitrenbolone, a metabolite of the anabolic steroid trenbolone.
• Arbitrators rejected Knighton’s claim that contaminated oxtail caused the result, citing a lack of supporting evidence.
• He did not qualify for the World Championships starting in Tokyo and the length of the ban would keep him out of the 2028 Los Angeles Olympics unless the penalty is reduced.