The World Anti-Doping Agency (WADA) says it’s lodging an appeal with the Court of Arbitration for Sport (CAS) after an independent tribunal found world No. 1 tennis player Jannik Sinner wasn’t at fault for twice testing positive for a banned substance in March 2024.

World Anti-Doping Agency appeals steroid case of top-ranked tennis player Jannik Sinner.

The World Anti-Doping Agency (WADA) has appealed to the Court of Arbitration for Sport (CAS) against an independent tribunal's decision in August to clear world number one Jannik Sinner of wrongdoing after he failed drug tests,

World Anti-Doping Agency is appealing the "no fault or negligence" finding in Jannik Sinner's anti-doping investigation for clostebol.

But WADA has appealed to the Court of Arbitration for Sport, seeking to impose a ban of up to two years on the 23-year-old Italian. A statement from the agency said: "It is WADA's view that the finding of 'no fault or negligence' was not correct under the applicable rules.

World number one Jannik Sinner is facing the renewed threat of a ban after the World Anti-Doping Agency launched an appeal against a ruling of "no fault or negligence" for two positive tests he returned in March.