By Harry King Caster Semenya, the South African middle-distance runner and back-to-back Olympic Champion in the 800 meters, is challenging the International Association of Athletics Federations’ (IAAF) revised eligibility rules for female athletes. In 2011, the IAAF introduced a maximum regarding the amount of testosterone a female competitor could have in their … [Read more...] about Caster Semenya’s career in the hands of the Court of Arbitration for Sport