BEIJING, CHINA - AUGUST 23:  Amel Tuka of Bosnia and Herzegovina (L) and Ferguson Cheruiyot Rotich of Kenya cross the finish line in the Men's 800 metres semi-final during day two of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 23, 2015 in Beijing, China.  (Photo by Cameron Spencer/Getty Images)