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

BEIJING, CHINA - AUGUST 23: Ristananna Tracey of Jamaica competes in the Women's 400 metres hurdles heats 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 Christian Petersen/Getty Images for IAAF)

Getty Images Sport Christian Petersen