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Olympic sprinter Erriyon Knighton gets 4-year ban for positive test for anabolic steroid

  • Court of Arbitration for Sport upheld a four-year ban on American sprinter Erriyon Knighton starting Friday, 2025-09-12.
  • The ban follows a doping case from May 2024 involving the anabolic steroid epitrenbolone, with Knighton judged not at fault for its presence.
  • Knighton argued the steroid came from contaminated oxtail meat, but CAS ruled the explanation lacked required proof and was statistically unlikely.
  • The ban disqualifies Knighton's results retroactively from March 26 to April 12, 2024, and credits him for a provisional suspension served last year.
  • The ban expires in early July 2028, effectively ruling Knighton out of the 2028 Los Angeles Olympics despite his status as a two-time Olympic finalist.
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U.S. athlete Erriyon Knighton, a 200-meter double world medalist, has been disqualified four years by the Court of Sport Arbitration (TAS), which has partially estimated two appeals from World Athletics and the World Anti-Doping Agency (AMA) after the sprinter tested positive for doping in a check in May 2024 and the U.S. Anti-Doping Agency (USADA) withdrew the initial sanction.

·Spain
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After a positive doping test, the International Sports Court at Erriyon Knighton is going through hard.

·Zürich, Switzerland
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KVOA broke the news in Tucson, United States on Friday, September 12, 2025.
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