Italian Sinner is currently the world's No. 1 ATP star player, but he has recently been caught up in a doping scandal. On the evening of August 20, Beijing time, the ATP official and the International Tennis Integrity Organization (ITIA) issued a statement confirming that Sinner had tested positive for banned substances in two tests in March, but after investigation, it has been confirmed that it was not the player's fault.

According to previous reports, in March this year, Sinner provided an in-game sample at the ATP1000 Masters held in Indian Wells, USA, but it was detected to contain a low concentration of clostebol metabolites. The same substance was also detected in another sample collected outside the game 8 days later. Clostebol is an anabolic agent on the banned list of the World Anti-Doping Agency (WADA). According to the World Anti-Doping Code (WADC), when the analysis results of non-specified substances such as clostebol are positive, the athlete will be temporarily suspended, but the athlete can also appeal to lift the suspension penalty.

Yesterday, Sinner won the ATP Cincinnati Masters. After the game, he responded on his personal social media that the banned substance entered his body because the physiotherapist used an over-the-counter spray containing chlortestosterone, which can be purchased in Italy, to treat the wounds on his skin from March 5 to 13 this year. At the same time, the physiotherapist gave Sinner daily massage and exercise therapy, causing Sinner to be transdermally contaminated without knowing it.

ITIA conducted a thorough investigation of the matter, including Sinner himself and his team members. After the investigation, ITIA determined that Sinner's violation was not intentional based on the advice of relevant experts. "We take any positive test results very seriously and will always follow the strict procedures established by the World Anti-Doping Agency," said Karen Moorhouse, CEO of ITIA. Although Sinner was not banned, his results, prize money and ranking points in the Indian Wells ATP 1000 Masters were cancelled.