Sinner tested positive twice for Clostebol – a steroid that can be used to build muscle mass – during the Indian Wells tournament last year.
He did not dispute that traces of Clostebol were found in his urine test and successfully argued that he had been accidentally contaminated with the substance by his physiotherapist.
The International Tennis Integrity Agency (ITIA) admitted that there was “no fault or negligence” on Sinner’s part and that he had given a “credible” explanation.
Wada does not question the player's explanation of why the substance entered his system, but believes the independent panel's finding that Sinner was not accused of fault or negligence is “incorrect under the applicable rules.” .
The Italian had the best year of his career so far in 2024, winning both the US Open and the Melbourne trophy.
He also won the season-ending ATP Finals and helped his country win the Davis Cup title.
However, his doping case – and that of five-time major champion Iga Swiatek – sparked discussions about how cases are handled in tennis.
Before the Cas date was announced, Sinner said, “I'd be lying if I told you I forgot.” [about the hearing].
“This is something I've had with me for quite some time now.
“But it is what it is.”
