Marketa Vondrousova seemed like one of us. Sure, she was immensely talented in a way most tennis fans aren't, but she also had to struggle to overcome injuries, fighting for her ranking on the WTA tour, and at times, challenging for Grand Slams (winning Wimbledon in 2023). Now, she is suspended.
Vondrousova was banned from the sport by the International Tennis Integrity Agency (ITIA) for four years due to failing to follow "protocol." She didn't have a positive result on a doping test, but she did stop a tennis official from entering her home in December 2025 for trying to get a sample to be tested.
Tennis, you see, doesn't play around with its testing rules. Every professional player knows that they can be tested anywhere and anytime, and they cannot refuse to do so. That is as bad as actually failing the test itself.
Tennis continues to have an issue after suspending Marketa Vondrousova
According to the BBC, Vondrousova told a tribunal of the ITIA earlier in 2026 that she "feared for her safety" in not allowing the official into her home. What the exact situation was surrounding the testing attempt is unknown, but Vondrousova knows the rules.
What she couldn't have known, as no player does, is what her punishment would be. Simona Halep, who failed a drug test ahead of the 2022 US Open (she was found to have Roxadustat in her system), was banned initially for four years, too, but that was reduced after an appeal.
Meanwhile, ATP No. 1 Jannik Sinner failed two drug tests at Indian Wells in 2024, but he was able to work out only a three-month suspension. Again, that was for failing two different drug tests.
Former WTA No. 1 Iga Swiatek failed a drug test in August 2024 (she had trimetazidine in her system), but was only suspended for a month. That implies Marketa Vondrousova would have been better off letting the official into her home, failing the drug test, and being suspended for less time than not taking the test at all.
But that likely wouldn't have been the case. Vondrousova has won a major, but she's struggled with different injuries, and her ranking has always been mercurial. Decision-makers of the sport might not see her as valuable as Sinner and Swiatek, so tennis missing her doesn't have the same level of financial damage.
Instead of the fun and down-to-earth interview responses from the normal human being that Vondrousova is, tennis fans likely won't see her for a while. She will probably appeal her ban, and it will likely be reduced. The issue with the inconsistency of how the ITIA punishes those involved with issues surrounding drug testing will remain, though.
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