(L-R) Kenya's Nicholas Bett, USA's Kerron Clement, Bahamas' Jeffery Gibson and Russia's Denis Kudryavtsev compete in the final of the men's 400 metres hurdles athletics event at the 2015 IAAF World Championships at the "Bird's Nest" National Stadium in Beijing on August 25, 2015. AFP PHOTO / PEDRO UGARTE (Photo credit should read PEDRO UGARTE/AFP/Getty Images)
