The teenage sensation has sparked controversy over her strikingly muscular physique. Today officials at the world athletics body, the IAAF, revealed that it ordered her to take a gender test three weeks ago. Read more: http://www.dailymail.co.uk/news/worldnews/article-1207653/Womens-800m-gold-medal-favourite-Caster-Semenya-takes-gender-test-hours-World-Championship-race.html#ixzz0OhIvqwY9