Martina Navratilova Backs WTA’s New Gene‑Testing Rule for Women’s Tennis

Long time tennis icon Martina Navratilova weighed in on Monday, expressing strong approval of the Women's Tennis Association’s brand‑new eligibility rule. Starting Tuesday, every player who wants to line up on the women’s tour will have to undergo a single genetic test – a simple cheek swab, a drop of blood or even a saliva sample – to check for the SRY gene, the piece of DNA that normally lives on the Y chromosome and kick‑starts male development.

If the test comes back negative – meaning the SRY gene isn’t present – the athlete is cleared to compete. A positive result, on the other hand, would trigger a further medical review before any final decision on eligibility is made. Players will also have to sign a form admitting they understand that refusing the test could lead to disciplinary action.

The new rule replaces the 2024 policy that let transgender women play as long as their testosterone stayed below 2.5 nmol/L for two consecutive years. The WTA notes that, at present, no known transgender women are on the tour. Navratilova, who has never shied away from the topic of gender participation in sport, called the change a “step in the right direction.” She posted on social media, “I played no part in this particular policy, but I’m very happy that we at the WTA are clear that we are a women’s association and only women, as in females, can compete at the highest level of women’s tennis.”

In its announcement, the WTA tried to strike a careful tone, acknowledging that the issue is “sensitive and complex.” The organization said the policy is meant to “promote equal athletic opportunities” and to keep competition fair for everyone, while also promising to treat all players with dignity and respect. It stressed that the move draws a line between biological sex and gender identity, with “no intent to disrespect or question the gender identity or the dignity of any person.”

WTA isn’t alone in this direction. World Athletics introduced SRY‑gene testing in 2025, World Boxing followed suit the same year, and the International Olympic Committee announced it will roll out similar testing ahead of the 2028 Los Angeles Games – a step that dovetails with a 2023 U.S. executive order on sports eligibility.

Beyond the gene‑testing debate, Navratilova has also reignited another longtime gripe: she wants Wimbledon to eliminate service lets, arguing the rule disrupts the flow of play. Whether it’s about testing or serve rules, she’s clearly still fighting for what she believes makes the sport fair and exciting.