Former Wimbledon champion Marketa Vondrousova has appealed to the Court of Arbitration for Sport against a four-year doping ban that stems from her failure to submit to a test in December 2025.
Key facts
- Marketa Vondrousova is appealing her ban to the Court of Arbitration for Sport (CAS).
- The Czech player did not let an anti-doping official enter her home to carry out a test in December 2025, according to the BBC.
- She was issued the suspension in June after she did not submit her sample when notified by a doping control officer, according to Al Jazeera.
- The ban is set to run until June 2030.
- Vondrousova is a former Wimbledon champion.
Former Wimbledon champion Marketa Vondrousova has lodged an appeal with the Court of Arbitration for Sport (CAS) against a four-year doping ban, in a case centred on a missed anti-doping test.
According to the BBC, the Czech player did not let an anti-doping official enter her home to carry out a test in December 2025. As a result, her ban is set to run until June 2030.
Al Jazeera reported that Vondrousova was issued the suspension in June, after she did not submit her sample when notified by a doping control officer.
The four-year length of the suspension would keep the former Wimbledon champion out of competition for a substantial period, ending in June 2030. Her appeal to CAS represents an attempt to challenge that outcome.
CAS is the body that hears disputes in sport, including appeals against anti-doping decisions. The outcome of Vondrousova’s appeal has not been reported in the available sources.
Why it matters
Anti-doping rules require athletes to make themselves available for testing, and failing to submit a sample can carry penalties as severe as a positive test. For a former Grand Slam champion, a four-year ban would have a major impact on her career, making the CAS appeal a significant test of the case.
Frequently asked questions
Why was Marketa Vondrousova banned?
According to the BBC, she did not let an anti-doping official enter her home to carry out a test in December 2025. Al Jazeera reported she did not submit her sample when notified by a doping control officer.
How long is Vondrousova's ban?
Her ban is a four-year suspension that is set to run until June 2030, according to the sources.
What is she doing to challenge the ban?
Vondrousova has appealed to the Court of Arbitration for Sport (CAS) against the four-year suspension.

