Jannik Sinner: Italian’s doping case to be heard at Court of Arbitration for Sport in April 2025

Sinner twice tested positive for clostebol – a steroid that can be used to build muscle mass – during the Indian Wells tournament last year.

He did not dispute traces of clostebol were found in his urine test and successfully argued that he had been inadvertently contaminated with the substance by his physiotherapist.

The International Tennis Integrity Agency (ITIA), accepted there was “no fault or negligence” attached to Sinner and he had provided a “credible” explanation.

Wada is not questioning the player’s explanation of why the substance ended up in his system, but believes the independent panel’s finding that Sinner held no fault or negligence is “not correct under the applicable rules”.

The Italian had the best year of his career so far in 2024, winning the US Open as well as the Melbourne trophy.

He also clinched the season-ending ATP Finals and helped his country retain the Davis Cup.

However, his doping case – and that of five-time major champion Iga Swiatek – sparked discussion about how cases are handled within tennis.

Speaking before the Cas date was announced, Sinner said: “I would lie if I would tell you I forget [about the hearing].

“It’s something what I have with me now already for quite a long time.

“But it is what it is.”