Ohuruogu of Britain and Hastings of the U.S. run in their women’s 400 metres semi-final during the IAAF World Athletics Championships in Moscow…Christine Ohuruogu of Britain (R) and Natasha Hastings of the U.S. (L) run in their women’s 400 metres semi-final during the IAAF World Athletics Championships at the Luzhniki stadium in Moscow August 11, 2013. REUTERS/Fabrizio Bensch (RUSSIA – Tags: SPORT ATHLETICS)