Russia's Sergei Petukhov, Vladimir Krasnov and Maksim Dyldin, from left, after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265893
Russia's Lev Mosin during the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265892
LaShawn Merritt of the United States after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265891
Russia's Lev Mosin after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265890
Russia's Lev Mosin, Maksim Dyldin, Sergei Petukhov and Vladimir Krasnov, from left, after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265889
Members of the American team after winning in the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265887
Athletes during the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265886
LaShawn Merritt of the United States during the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265884
Medalists in the men's 5000m race at the World Athletics Championships in Moscow at the medal ceremony, from left: Ethiopia's Hagos Gebrhiwet (silver), Great Britain's Mohamed Farah (gold) and Kenya's Isaiah Koech (bronze).16.08.2013#2265882
Russia's Vladimir Krasnov, left, during the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265881
American athletes after winning the finals of the men's 4x400m relay at the World Athletics Championships in Moscow.16.08.2013#2265878
Russia's Sergei Petukhov, Vladimir Krasnov and Maksim Dyldin, from left, after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265876
LaShawn Merritt of the United States, center, during the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265874
Russia's Vladimir Krasnov, Lev Mosin, Maksim Dyldin and Sergei Petukhov, from left, after the preliminary round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265872
Russia's Sergei Petukhov, Lev Mosin and Maksim Dyldin, from left, after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265871
Members of the Jamaican national team after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265870
Members of the American national team after winning in the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265869
Russian athletes after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265867
Russia's Maksim Dyldin, Sergei Petukhov and Lev Mosin, from left, after the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265865
Athletes during the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265862
Canadian Dylan Armstrong competing in the men's shot put at the World Athletics Championships in Moscow.16.08.2013#2265860
Athletes during the final round of the men's 4x400m relay at the 2013 IAAF World Championships in Moscow.16.08.2013#2265859
Reese Hoffa of the United States during the men's shot put competitions at the 2013 IAAF World Championships in Moscow.16.08.2013#2265858
Reese Hoffa of the United States during the men's shot put competitions at the 2013 IAAF World Championships in Moscow.16.08.2013#2265856
Jamaic's Shelly-Ann Fraser-Price, left, in the finals of the women's 200m race at the World Athletics Championships in Moscow.16.08.2013#2265855
Germany's David Storl during the men's shot put competitions at the 2013 IAAF World Championships in Moscow.16.08.2013#2265853
Germany's David Storl during the men's shot put competitions at the 2013 IAAF World Championships in Moscow.16.08.2013#2265852
Shelly-Ann Fraser-Pryce (Jamaica), center, after the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265849
Shaunae Miller (Bahama Islands), Murielle Ahoure (Cote d'Ivoire), Blessing Okagbare (Nigeria) and Shelly-Ann Fraser-Pryce (Jamaica) during the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265848
American Ryan Uating competing in the men's shot put at the World Athletics Championships in Moscow.16.08.2013#2265847
American athletes Allyson Felix, left, and Djénébou Tarmo after the finals of the women's 200m at the World Athletics Championships in Moscow.16.08.2013#2265845
Reese Hoffa of the United States during the men's shot put competitions at the 2013 IAAF World Championships in Moscow.16.08.2013#2265843
Athletes during the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265842
Germany's David Storl during the men's shot put competitions at the 2013 IAAF World Championships in Moscow.16.08.2013#2265841
Germany's David Storl during the men's shot put competitions at the 2013 IAAF World Championships in Moscow.16.08.2013#2265840
Jamaican athlete Shelly-Ann Fraser-Pryce after winning in the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265834
Jamaica's Shelly-Ann Fraser-Pryce after the finals in the women's 200m race at the World Athletics Championships in Moscow.16.08.2013#2265832
Jamaican athlete Shelly-Ann Fraser-Pryce after winning in the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265831
Jamaica's Shelly-Ann Fraser-Pryce after the finals in the women's 200m race at the World Athletics Championships in Moscow.16.08.2013#2265828
Hagos Gebrivet (Ethiopia) after the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265827
Jamaican athlete Shelly-Ann Fraser-Pryse after the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265824
Jamaican athlete Shelly-Ann Fraser-Pryse after winning in the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265821
Jamaican athlete Shelly-Ann Fraser-Pryse after the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265819
Jamaican athlete Shelly-Ann Fraser-Pryse after the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265817
Jamaican athlete Shelly-Ann Fraser-Pryce after the final round of the women's 200m sprint at the 2013 IAAF World Championships in Moscow.16.08.2013#2265816
Poland's Anita Wlodarczyk, winner of the silver medal in the women's hammer throw competition at the 2013 IAAF World Championships in Moscow, during the medal cerermony.16.08.2013#2265813
China's Zhang Vensiu, who won a bronze medal in the women's hammer throw at the World Athletics Championships in Moscow, at the medal ceremony.16.08.2013#2265811
Mo Farah (Great Britain) after the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265810
Mo Farah (Great Britain) after winning in the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265808
Russia's Tatyana Lysenko, winner of the gold medal in the women's hammer throw competition at the 2013 IAAF World Championships in Moscow, during the medal cerermony.16.08.2013#2265806
From left: Ethiopia's Hagos Gebrhiwet, Kenya's Isaiah Kiplangat Koech and Great Britain's Mohamed Farah in the finals of the men's 5000m race at the World Athletics Championships in Moscow.16.08.2013#2265807
Russia's Tatyana Lysenko, winner of the gold medal in the women's hammer throw competition at the 2013 IAAF World Championships in Moscow, during the medal cerermony.16.08.2013#2265805
Medalists in the women's hammer throw at the World Athletics Championships in Moscow at the medal ceremony, from left: Poland's Anita Wlodarczyk (silver), Russia's Tatyana Lysenko (gold), China's Zhang Vensiu (bronze).16.08.2013#2265801
Mo Farah (Great Britain) after the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265797
Hagos Gebrhiwet (Ethiopia), Mohamed Farah (UK) and Isaiah Koech (Kenya) in the finals of the men's 5000m at the World Athletics Championships in Moscow.16.08.2013#2265796
Mo Farah (Great Britain) after winning in the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265793
Mo Farah (Great Britain), center, after the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265792
Mo Farah (Great Britain) after winning in the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265791
Mo Farah (Great Britain) after winning in the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265790
Mo Farah (Great Britain) after winning in the final round of the men's 5000m race at the 2013 IAAF World Championships in Moscow.16.08.2013#2265789