Kenya's Jelimo and South Africa's Semenya arrive at a news conference in Ostrava
Kenya's Pamela Jelimo (L) and South Africa's Caster Semenya arrive at a news conference in Ostrava May 24, 2012. Jelimo and Semenya will compete in the 800 metres event at the IAAF World Challenge Ostrava Golden Spike meet on Friday. REUTERS/David W Cerny (CZECH REPUBLIC - Tags: SPORT ATHLETICS)