Olympics Day 10

Ethiopia's Genzebe Dibaba reacts in pain after finishing her women's 1500m heat at the athletics event at the London 2012 Olympic Games on August 6, 2012 in London. (Eric Feferberg/AFP/Getty Images)

Ethiopia’s Genzebe Dibaba reacts in pain after finishing her women’s 1500m heat at the athletics event at the London 2012 Olympic Games on August 6, 2012 in London. (Eric Feferberg/AFP/Getty Images)