Czech tennis star Marketa Vondrousova has been banned for four years from professional competition by the International Tennis Integrity Agency (ITIA) for refusing to comply with an out-of-competition anti-doping test in December 2025. An independent tribunal handed down this penalty to the 2023 Wimbledon champion after she had refused to comply with a request to submit a testing sample at her home to a doping control officer.
It all started back in December 2025, when a doping control officer made an unannounced visit to Vondrousova’s house at around 8:15 p.m. As per her Instagram story, Vondrousova took strong objection to the December visit, as she claimed that the officer showed up outside the one-hour period that she had officially declared.
She then claimed that the officer refused to honor her reserved hour and mandated that she take the test anyway. She felt that this was a serious invasion of privacy, which later culminated in her facing acute stress.
She also emphasized that she respects the anti-doping rules of informing the agents when she would be available for one specific hour each day for testing. Vondrousova highlighted the behavior of the officer who dismissed her privacy concerns.
“When I pointed out that it was outside my testing window and a serious intrusion into my privacy, I was told: ‘This is the life of a professional athlete.'”
In another statement in April, she outlined a few reasons that contributed to her anti-doping refusal. Importantly, Vondrousova maintained that the doping official refused to show their id despite her insistence, and added that it contributed to making the environment very ‘stressful’ for her.
“When I went downstairs, she immediately started talking to me to let her in. She didn’t ask for my ID, nor did she show me hers. Nor any paper that she was authorized to do a doping control. It was stressful for me that someone unknown was standing there, wanting to come into my living room and not showing me any authorization. Nothing that should normally happen happened. At that moment, I thought to myself, anyone could say this,” she said (via iSport).
Vondrousova’s lawyer confirmed her version of the story, saying:
“She wouldn’t show ID, she wouldn’t show credentials, and she was putting pressure on her: either you sign the paper here or I won’t leave.”
The tribunal, however, has not accepted her story, as they did not find her defense a compelling justification for not complying with the testing rules. Nicole Sapstead, ITIA’s senior director for anti-doping, called for a maximum punishment for the two-time Slam winner at the tribunal hearing, despite Vondrousova presenting clinical evidence of her mental struggles, as described in her Instagram post.
The ITIA has also released a statement, acknowledging the stressful nature of testing, while also emphasizing the importance of anti-doping practices to keep everything fair. Specifically regarding the accusation about lack of IDs, the ITIA said:
“Safety and welfare of players and our testers is really important to us. Our testers are well-trained, professional, and the gender of our testing witness always matches the player. They carry ID at all times, and players are able to verify their identity in other ways if they are ever unsure.”
For the full statement, click here.
Marketa Vondrousova’s Statement After the Ban Announcement
After the ban was announced, Vondrousova wasted no time and immediately penned an emotional statement detailing the physical and emotional toll the case had taken on her life since the last seven months.
“I never thought I would be writing something like this. And honestly, I would not wish what I have been through over the past few months on anyone. Waking up every day with uncertainty, fear, and the feeling that you are losing control over your own life is something that is difficult to put into words.”
She further maintained her innocence by mentioning that she never tested positive for using any kind of substance.
“I have never doped. I have never had a positive test. Throughout my entire career, I have undergone countless anti-doping controls and have always stepped onto the court with a clear conscience.”
As things stand, Vondrousova’s ban will end on June 21, 2030.
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