MOSCOW, RUSSIA - AUGUST 16: (L-R) Johan Cronje of South Africa, Lopez Lomong of the United States and Valentin Smirnov of Russia compete in the Men's 1500 metres semi finals during Day Seven of the 14th IAAF World Athletics Championships Moscow 2013 at Luzhniki Stadium at Luzhniki Stadium on August 16, 2013 in Moscow, Russia. (Photo by Ian Walton/Getty Images)

Team South Africa clinched their only medal at the IAAF World Championships when Johan Cronje stunned the field to take bronze in the 1500m behind winner Asbel Kiprop and silver medallist Matthew Centrowitz.