Swim star Sun Yang prepares to give evidence in sports court

MONTREUX, Switzerland (AP) — China’s star swimmer Sun Yang is preparing to give evidence in a landmark public hearing where he risks being banned from the 2020 Tokyo Olympics.

Sun is the first witness scheduled to speak at 9.15am Swiss time (0815 GMT) in a rare Court of Arbitration for Sport (CAS) appeal hearing held in open session before media and public observers.

The three-time Olympic champion’s hearing is expected to last more than 11 hours. A verdict from three CAS judges is unlikely this year.

The appeal case was brought by the World Anti-Doping Agency. It centres on Sun’s right to refuse cooperation with three anti-doping officials who tried to take blood and urine samples at his home in China last year.

A security guard instructed by Sun’s mother used a hammer to smash a box containing a vial of his blood during a late-night dispute after the swimmer questioned the collection team’s credentials.

This July 23 photo shows gold medalist China’s Sun Yang gestures to Britain’s bronze medalist Duncan Scott at the World Swimming Championships in Gwangju, South Korea. PHOTO: AP