“I reached breaking point”: Marketa Vondrousova appeals four-year ban after anti-doping case

Friday, 28 August 2026 at 06:30

Marketa Vondrousova hitting the tennis ball

Marketa Vondrousova has taken the next step in her fight against a four-year suspension, appealing her ban to the Court of Arbitration for Sport (CAS) in Lausanne. The former Wimbledon champion was suspended by the International Tennis Integrity Agency (ITIA) in June after refusing to provide a sample during an out-of-competition anti-doping test at her home in December 2025.

CAS confirmed that it has received Vondrousova's appeal, although a hearing date has not yet been scheduled. The Czech's suspension is currently due to run until June 21, 2030, after an independent tribunal concluded that she had provided “no compelling justification” for refusing the test.

The incident took place on December 3, 2025, when a doping control officer arrived at Vondrousova's home at around 8pm. The Czech later said that she had reached “breaking point after months of physical and mental stress” and felt that the late-night visit was a serious intrusion into her privacy.

Vondrousova has also maintained that she has never used prohibited substances and pointed to a negative test taken three days after the incident. She has not competed since January and has fallen to No. 153 in the WTA rankings, making the CAS appeal potentially decisive for the remainder of her career.

Vondrousova challenges four-year suspension

The 2023 Wimbledon champion's appeal gives her the opportunity to challenge the tribunal's decision at the sport's highest judicial level. For now, however, there is no indication of when the CAS hearing will take place.

Vondrousova's defence has centered on the circumstances surrounding the attempted test rather than the presence of any banned substance. She argued that she was under significant physical and mental pressure at the time and that she was concerned about the circumstances of the officer's arrival at her home.

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“For a long time, I've dealt with injuries, constant pressure, and persistent sleep problems that left me exhausted and vulnerable," the former Wimbledon champion said according to BBC Sports. "Gradually, they wore me down more than I probably realized at the time. Moreover, years of hateful messages and threats have affected my sense of security in my own space.”

The ITIA, however, maintained that players are required to provide accurate whereabouts information and remain available for testing outside their designated one-hour testing window. The independent tribunal ultimately rejected Vondrousova's justification for refusing the sample and imposed the four-year suspension.

“I have never doped”

Vondrousova has strongly rejected any suggestion that the case is connected to performance-enhancing drugs. Her position has remained that she refused the test because of the circumstances surrounding the attempted collection, rather than because she had anything to hide.

“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 on the court with a clear conscience. Just three days after the incident that ultimately changed my life, I was tested again. The result was negative. Just like every test before it.”

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The Czech reached the peak of her career in 2023, when she became the first unseeded woman to win the Wimbledon singles title. She had previously reached the 2019 French Open final and won an Olympic silver medal at the Tokyo Games in 2021. She also climbed as high as No. 6 in the WTA rankings later in 2023.

Her recent career has instead been disrupted by injuries and now the suspension. Vondrousova has not played since the Adelaide International in January, while her ranking has dropped to No. 153.

The CAS appeal now represents her latest attempt to overturn or reduce the sanction. With the suspension currently extending until June 2030, Vondrousova will be hoping the Lausanne court provides a different outcome from the independent tribunal.

Cristhián AvilaTennis Journalist

Cristhián Ávila is a tennis journalist based in Santiago, Chile, and has been part of the TennisUpToDate team since early 2023. He covers the ATP and WTA Tours as well as all four Grand Slams, producing breaking news, match reports, analysis, and regular liveblogs from major tournaments.

His reporting combines statistical analysis with clear explanation, helping readers understand tactical developments, player form, and broader storylines across the tour. Working fluently in both Spanish and English, Cristhián collaborates with an international editorial team and contributes to comprehensive global coverage. As part of his work, he has conducted interviews and media interactions with leading figures in the sport, including Caroline Wozniacki and John McEnroe.

In his journalism, Cristhián places strong emphasis on careful sourcing, editorial accuracy, and updating articles promptly when new, verified information becomes available. His coverage is grounded in research, context, and direct engagement with professional tennis.

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