Caster Semenya will need to reduce her natural testosterone levels by use of daily hormonal contraceptives if her future times on the track are to be valid for record purposes — or if she intends defending her Olympic and world titles over 800m‚ according to planned new rules. The IAAF‚ the governing body of world athletics‚ is piloting new eligibility regulations for a separate female classification to be known as an Athlete with Differences of Sexual Development (or DSDs)‚ which will directly affect Semenya, the Irish Times reports. However‚ the regulations‚ expected to be confirmed on Friday‚ may end up in the Court of Arbitration for Sport if an athlete challenges them. South African sports scientist Ross Tucker suspects a legal challenge may be mounted. The regulations are set to come into effect on November 1 to allow female athletes with DSDs a six-month “compliance” period‚ whereby they must undergo the testosterone reduction should they wish to avoid having to stand down fr...

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