A transgender hurdler was ruled ineligible for tryouts for the Tokyo Olympics. CeCe Telfer was disqualified for not meeting the testosterone requirements set forth in the World Athletics guidelines. The exact nature of her violation has not been made public, but Telfer could have too much testosterone at this time or during the past 12 months. World Athletics governs Olympic eligibility and two rules decide which biological men can compete in the women’s division. Eligibility requires approval of both rules.