Mariya Savinova of Russia (C) celebrates as she sprints to the finish line winning the women's 800 metres final ahead of Caster Semenya of South Africa (R) and Alysia Johnson Montano (L) of the U.S. at the IAAF World Athletics Championships in Daegu, September 4, 2011. REUTERS/David Gray (SOUTH KOREA - Tags: SPORT ATHLETICS)