16th IAAF World Athletics Championships London 2017 - Day Four [Getty Images]

LONDON, ENGLAND - AUGUST 07: Denisa Rosolova of the Czech Republic competes in the Women's 400 metres hurdles heats during day four of the 16th IAAF World Athletics Championships London 2017 at The London Stadium on August 7, 2017 in London, United Kingdom. (Photo by Andy Lyons/Getty Images for IAAF)

Getty Images Sport Andy Lyons