Markéta Vondroušová Receives Four-Year Ban for Refusing Doping Test

Markéta Vondroušová, the 2023 Wimbledon champion, faced a four-year suspension from professional tennis for refusing a doping test in December 2025. Her suspension will last until 2030, pending any appeal to the Court of Arbitration for Sport (CAS).

The Offense

Vondroušová did not provide a sample when a Doping Control Officer visited her home around 8 p.m. on December 3, 2025. The International Tennis Integrity Agency (ITIA) charged her with refusal of a test. An independent tribunal concluded that her evidence did not justify the refusal, resulting in a four-year ban.

Vondroušová’s Defense

Vondroušová claimed that the test occurred outside her designated one-hour slot, causing an acute stress reaction. She cited fears for her safety, referencing the attack on Petra Kvitová, a fellow Czech athlete, in her home. Clinical evidence presented at the tribunal supported her mental health claims.

Testing Rules and Athlete Awareness

Vondroušová believed testing should occur only within the designated slot, a misunderstanding shared by others in tennis. Testing rules allow for surprise tests at any time. ITIA emphasizes random testing as necessary for clean sports and clarity on rules as a collective challenge.

The Severity of the Punishment

The four-year ban serves as a deterrent, equating refusal with a positive doping test. Notable examples in tennis include Vladislav Ivanov, who faced a similar ban. The ITIA seeks to prevent players from avoiding penalties through refusal.

Vondroušová’s Reaction

In an Instagram post, Vondroušová expressed the turmoil she faced and her history of clean tests. She shared her efforts to cooperate and maintain transparency throughout the process.

Reaction from the Tennis Community

Support from fellow players poured in, voicing concern over the severity of her punishment. The Professional Tennis Players Association (PTPA) stressed the need for player input into regulations governing them.

Next Steps

Vondroušová, ITIA, and her national anti-doping organization may appeal to CAS. She has 21 days to decide post-publication of the written decision. During suspension, she cannot participate in any ITF, WTA, ATP, Grand Slam events, or any national association activities.