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The Erriyon Knighton anti-doping case: Another flipped decision on meat contamination

Sprinters Start Line
Friday, 28 November 2025 Author: Mike Cook

This article reviews the recent decision from the Court of Arbitration for Sport (CAS) finding that Erriyon Knighton had committed an antidoping rule violation.  This article reviews the background facts, the arguments presented at the first instance hearing and the arguments presented at the CAS hearing.

The first instance decision from USADA can be found here,[1] while the CAS award can be found here[2].

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Mike Cook

Mike Cook

Mike Cook is an arbitrator based out of Hillsboro, Oregon USA.  He is a member of the International Panel at Sport Resolutions and a member of the medical committee of the International Functional Fitness Federation.  Mike is also an international level competitor in CrossFit.

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