Wimbledon champion Marketa Vondrousova banned four years for refusing anti-doping test
The 2023 Wimbledon champion has been suspended from tennis until June 2030 after an independent tribunal found no compelling justification for her refusal to provide a sample last December.
The sanction
Marketa Vondrousova, the 26-year-old Czech who won Wimbledon in 2023, was handed a four-year suspension on Monday by the International Tennis Integrity Agency (ITIA). An independent tribunal concluded that she had "no compelling justification" for refusing an out-of-competition doping test at her home on the evening of 3 December 2025. The ban runs until 21 June 2030, when Vondrousova will be 30. During the suspension she is barred from playing, coaching, or attending any event sanctioned by the ITF, WTA, ATP, the Grand Slams, or any national federation.
The night of the test
A doping control officer arrived at Vondrousova's residence around 8 p.m. on 3 December 2025. According to the ITIA statement, the player did not submit a sample. Under anti-doping rules, a refusal is treated in the same way as a positive test, precisely to prevent anyone from escaping a longer ban by simply declining to comply. Vondrousova has not competed on the WTA Tour since pulling out of the Adelaide International in January because of a shoulder injury; her ranking has slipped to world number 122.
- Doping control officer visits Vondrousova's home; she refuses to provide a sample.
- Vondrousova reveals on Instagram that fear and mental strain led her to refuse the test.
- ITIA announces four-year suspension; ban runs until 21 June 2030.
- Suspension ends.
Vondrousova's defence
Vondrousova argued that stress, fragile mental health, and fear for her safety shaped her decision. In an Instagram post in April, she wrote: "I reacted the way someone does who was scared in that moment. It was about feeling safe, not about avoiding anything." She described months of physical and emotional strain, constant pressure, sleep problems, and years of hateful messages and threats that left her feeling unsafe even at her own home. Her testimony also drew on the 2016 knife attack against compatriot Petra Kvitova, who was assaulted in her apartment by a man posing as a maintenance worker. "After what happened to Petra, we don't take strangers at our door lightly," Vondrousova said.
The ITIA's position
ITIA chief executive Karen Moorhouse acknowledged the uncomfortable nature of testing and the extra burden it places on athletes, but insisted the process is essential. "Unpredictable testing is an essential tool to protect clean sport. The independent tribunal ultimately supported that principle," she said. Moorhouse stressed that testers carry identification, are well-trained, and that the gender of the observing officer always matches the player's. The tribunal's ruling did not accept Vondrousova's mental-health and safety explanations as a compelling justification.
We understand that the testing process is uncomfortable, and acknowledge that it is an additional burden for players whose jobs already come with a high level of pressure and scrutiny, but it is essential to protect fair competition.
What comes next
Vondrousova has the right to appeal to the Court of Arbitration for Sport (CAS). Her lawyer, Jan Exner, told AFP that she will review the full reasoning behind the verdict before deciding on any further steps. The suspension means that one of the sport's most unexpected Grand Slam champions, who won Wimbledon as an unseeded player, faces the prospect of missing what would be the prime years of her career.
