EUROPE'S top human rights court ruled in favour of Olympic runner Caster Semenya, saying courts in Switzerland should give her a new chance to fight a requirement that female athletes with high natural testosterone take drugs to lower it. The South African double Olympic 800m champion, 32, had approached the European Court of Human Rights in February 2021 after losing appeals to CAS, the sport's highest court, and the Swiss Federal Tribunal (SFT) in a long-running legal battle. The ECHR ruled, by a slender majority of four votes to three, that Semenya's original appeal against World Athletics regulations had not…