Eunice Jepkoech Sum of Kenya (R) crosses the finish line to win the women's 800 metres final ahead of second place finisher Mariya Savinova of Russia (2nd R), Alysia Johnson Montano of the U.S., (top L) Ekaterina Poistogova of Russia and Ajee Wilson of the U.S. (bottom L) during the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 18, 2013. REUTERS/Fabrizio Bensch (RUSSIA - Tags: SPORT ATHLETICS)