Caster Semenya, a two-time Olympic champion, won a major legal victory when the European Court of Human Rights ruled that she was discriminated against by sports rules requiring her to medically reduce her natural hormone levels to compete. The court found that the rules, introduced by World Athletics, raised “serious questions” about their validity. Semenya has vowed to continue fighting for her right to compete without restriction and to go for another gold at the 2021 Olympics in Paris, though the implications of the ruling remain unclear.