United States sprinter Erriyon Knighton went to court Monday to defend his claim he was contaminated in a positive doping ...

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, which is often found in livestock.

The doping case involving U.S. sprinter Erriyon Knighton’s claims of eating contaminated meat is being appealed and will be sent to the Court of Arbitration for Sport. The Athletics Integrity ...

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, ... Erriyon Knighton reacts following his men's 200-meter ...

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, which is often found in livestock.

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, which is often found in livestock.

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, which is often found in livestock.

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, which is often found in livestock.

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, which is often found in livestock.

Knighton was cleared by the U.S. Anti-Doping Agency before the Olympic trials after testing positive for a banned drug Trenbolone, which is often found in livestock.