On a clear and sunny Friday afternoon in July 2009, Ms Mokgadi Caster Semenya ascended to athletics greatness. On day two of the African Junior Athletics Championships, at the Stade Germain Comarmond in Bambous, Mauritius, Caster Semenya won the women’s 800m race in a time of 1:56:72. Her time was a new personal best, a…