RIO DE JANEIRO, BRAZIL - AUGUST 14: Wayde Van Niekerk of Republic South Africain action with Matthew Hudson-Smith of Great Britain, Kirani James of Grenadia and Lashawn Merritt of United States during the final Athletics Men's 400m at Olympic Stadium on August 14, 2016 in Rio de Janeiro, Brazil. (Photo by Xavier Laine/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 14: Wayde van Niekerk of South Africa celebrates after winning the Men's 400 meter final and setting a new world record of 43.03 on Day 9 of the Rio 2016 Olympic Games at the Olympic Stadium on August 14, 2016 in Rio de Janeiro, Brazil. (Photo by Cameron Spencer/Getty Images)
