The Women's Tennis Association will require every player to take a one-off DNA sex test if they want to keep competing. The new rule introduces mandatory screening for a gene linked to biological sex and will become a condition of eligibility from 2026.
Under the updated policy, players must complete a single genetic test to confirm they can continue entering women's events. Those who refuse risk being ruled ineligible and could face suspension, making the result of a single swab decisive for their place on the women's tour.
