Genetic Testing Mandate Stuns Tennis

The world’s top-ranked women’s tennis player just told the WTA to test her too, if that’s what fairness requires.

Quick Take

Aryna Sabalenka, the WTA’s world No. 1, publicly backed the tour’s new transgender eligibility policy.
The rule requires genetic screening for the SRY gene through a cheek swab, blood draw, or saliva sample.
Sabalenka said she would gladly take the test herself to keep the sport fair.
Critics say the policy sweeps too wide, since no transgender women currently compete on tour.

A Top Player Puts Her Name Behind The New Rule

Sabalenka did not dodge the question when reporters asked about the WTA’s new policy. She said keeping the women’s circuit fair matters more than comfort. “If you want to test us all, I will gladly do so, it’s pretty fair,” she told reporters, according to GB News. That kind of blunt support from the game’s biggest star gives the policy instant weight most rule changes never get.

Her comments came days after fellow athlete Sophie Cunningham made similar remarks about women’s sports, and Sabalenka echoed that stance almost point for point. She later told Reuters she believes transgender women retain a “significant advantage” and that facing “biological men” in competition is not fair to female athletes. Coming from the four-time Grand Slam champion, the message lands differently than it would from a mid-tier player.

What The Policy Actually Requires

The WTA’s updated rule is not a light-touch questionnaire. It calls for a one-time genetic screen checking for the SRY gene, collected through a cheek swab, blood draw, or saliva sample. Every player on tour faces the test, regardless of whether any transgender athlete is currently competing at the elite level. That detail is exactly what has fueled pushback from some corners of the sport.

A positive SRY result does not end the matter quietly. It triggers further medical review and can lead to suspension while officials sort out eligibility. Geneticist Andrew Sinclair has warned that the SRY test alone cannot show whether testes formed, whether testosterone is produced, or how the body actually uses it. That gap between a genetic marker and real competitive advantage is where critics say the policy overreaches.

Why Some Players And Experts Are Pushing Back

Reporting also shows the rule can catch cisgender women with differences of sex development, including conditions like complete androgen insensitivity syndrome. Those athletes may now have to prove their status after a positive test, even though they were never the policy’s stated target. That reality has turned a debate about transgender eligibility into a broader argument about privacy and who bears the burden of proof.

Transparency has been another sore point. Coverage indicates the WTA did not notify players directly about the change, and no executive offered a public explanation. Some observers have questioned whether the player board even signed off on the mandate. When a governing body imposes mandatory genetic testing without clear communication, distrust fills the silence, no matter how sound the underlying goal.

Where The Broader Debate Stands

Tennis is not alone here. Other sports, including track and field, have already moved from testosterone-based rules toward stricter exclusions for transgender women who went through male puberty, citing the same fairness argument Sabalenka makes. That trend suggests the WTA’s move fits a wider shift across elite sport rather than standing as an isolated decision, even as questions about implementation and privacy remain unresolved.

🎾 Aryna Sabalenka is backing the WTA’s new transgender eligibility policy.

Sabalenka says it is unfair for biological men to compete in women’s tennis, adding that while the WTA “took a little while” to make the decision, she believes it ultimately made the right call.

She… https://t.co/12HYC6nt1K pic.twitter.com/sdBMuDEyMv

— The Globe & News (@TheGlobeNewt) August 4, 2026

What stands out is that this fight is no longer confined to activists or officials arguing in press releases. The sport’s biggest name put her reputation behind the policy, in plain language, without hedging. Whether the testing process gets refined or challenged, Sabalenka’s stance has already reframed the conversation around one simple idea: protecting the women’s category starts with defining who belongs in it.