Former Wimbledon champion Marketa Vondrousova is barred from professional tennis until June 2030 after the International Tennis Integrity Agency (ITIA) suspended her for four years. The ruling comes as the sport’s governing bodies enforce strict testing compliance following recent controversies involving top-ranked players like Simona Halep and Jannik Sinner.
The suspension originates from an out-of-competition test attempt on December 3, 2025. A Doping Control Officer arrived at Vondrousova’s residence around 8:15 p.m. to collect a sample, but the Czech player refused to submit to the testing protocol. Vondrousova will be unable to play, coach, or attend any sanctioned tennis events until her ban officially expires on June 21, 2030.
In her public defense, Vondrousova claimed she experienced an “acute stress reaction” when the agent rang her doorbell late at night. She stated the agent failed to properly identify themselves outside her designated whereabouts window. Referencing the violent 2016 home invasion suffered by fellow Czech tennis star Petra Kvitova, Vondrousova said fear clouded her judgment and made her feel unsafe answering the door.
An independent tribunal reviewed the timeline and testimony from the testing agent. The panel concluded her defense offered no compelling justification for dodging the test. ITIA Chief Executive Karen Moorhouse confirmed that testing personnel are professionally trained, always match the gender of the player, and carry verifiable identification. The ITIA maintains that the standard sanction for a test refusal must mirror a positive test result to prevent athletes from simply ignoring collection agents.
Vondrousova has retained doping-specialist lawyer Howard Jacobs to challenge the decision. She retains the right to appeal the four-year penalty to the Court of Arbitration for Sport.