15th IAAF World Athletics Championships Beijing 2015 - Day One [Getty Images]

BEIJING, CHINA - AUGUST 22: Ghirmay Ghebreslassie of Eritrea crosses the line to win gold in the Men's Marathon during day one of the 15th IAAF World Athletics Championships Beijing 2015 at Beijing National Stadium on August 22, 2015 in Beijing, China. (Photo by Ian Walton/Getty Images)

Getty Images Sport Ian Walton