Wimbledon champion Vondrousova challenges four-year doping ban at CAS
Marketa Vondrousova has appealed to the Court of Arbitration for Sport against a four-year suspension for refusing an out-of-competition anti-doping test.
Former Wimbledon champion Marketa Vondrousova has taken her four-year anti-doping ban to the Court of Arbitration for Sport, disputing a sanction imposed by the International Tennis Integrity Agency for refusing an out-of-competition test in December 2025. Vondrousova said the testing officer arrived at her residence at 20:00, failed to properly identify himself and breached protocol, leaving her feeling threatened and leading her to decline the test.
The tribunal concluded she provided no compelling justification and denied any reduction of the suspension, leaving the ban in effect through June 2030. Vondrousova, the first unseeded player to win Wimbledon’s women’s singles title in 2023, maintains she has never doped and has undergone countless controls. She has not competed since the Adelaide International in January and has slipped to 153rd in the WTA rankings. CAS confirmed receipt of the appeal but has not scheduled a hearing date.
Why it matters
The case could shape future enforcement of anti-doping rules and athletes' rights to due process.
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