Former Wimbledon Champion Marketa Vondroušová Suspended for Four Years After Refusing Doping Test

Under tennis anti-doping rules, a player who refuses a test is treated the same as a player who tests positive.

Marketa Vondrousova reacts during her first- round Wimbledon loss to Jessica Bouzas Maneiro in London on July 2, 2024. Kirsty Wigglesworth/AP Photo

Former Wimbledon Champion Marketa Vondroušová received a four-year suspension on June 22 for refusing an anti-doping test, the International Tennis Integrity Agency (ITIA) announced.

Vondroušová, who reached a career-high women’s singles ranking of six in September 2023, did not give a sample when notified by a doping control officer for an out-of-competition test attempt at her house on Dec. 3, 2025, at around 8 p.m., according to the agency.