Vondrousova appeals to Cas against four-year ban

Marketa Vondrousova, the former Wimbledon champion, has appealed to the Court of Arbitration for Sport (CAS) to reduce her four-year ban imposed for refusing an anti-doping test. The 27-year-old Czech player received the ban in June after the International Tennis Integrity Agency (ITIA) accused her of denying an out-of-competition test at her home in December 2025. Her suspension will expire on June 21, 2030.

Vondrousova was at breaking point after months of physical and mental stress when she refused the test, according to a statement she made in April. She claimed the officer failed to properly identify themselves when they arrived at her home at 8 PM on December 3 and did not follow protocol. She had signed a refusal form later that day after going outside to walk her dog. However, a tribunal found that Vondrousova did not provide compelling justification for refusing the test nor for a reduced ban.

To avoid future anti-doping tests, players are required to log their whereabouts for an entire hour each day. Vondrousova, a former French Open finalist and Olympic silver medallist, expressed her innocence in a statement following her ban, reiterating that she has never doped or taken a positive test. Despite her claims, she has not played since reaching the second round of the Adelaide International in January and has dropped to 153rd in the WTA rankings.