United States sprinter Erriyon Knighton has been cleared to compete at the Olympic ... to take part in the US Olympic Trials, which begin on June 21 in Oregon. CNN has reached out to Knighton ...

American sprinter Erriyon Knighton, who tested positive in an anti-doping control earlier this year, has been cleared to compete in the upcoming track and field trials following an arbitration ...

WASHINGTON — The doping case involving U.S. sprinter Erriyon Knighton's claims ... After Knighton was cleared by USADA, he qualified for the 200 meters at Olympic trials, then finished fourth ...

Eugene (United States) (AFP) – US sprint star Erriyon Knighton tested positive for a banned steroid earlier this year but has been cleared to take part in upcoming US Olympic track and field ...