RIO DE JANEIRO, BRAZIL - AUGUST 12: Zhen Wang of China celebrates winning gold in the Men's 20km Race Walk on Day 7 of the Rio 2016 Olympic Games at Pontal on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Ryan Pierse/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 12: Zhen Wang of China celebrates winning gold in the Men's 20km Race Walk on Day 7 of the Rio 2016 Olympic Games at Pontal on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Ryan Pierse/Getty Images)
Getty Images Sport Ryan Pierse
China's Wang Zhen competes in the Men's 20km Race Walk during the athletics event at the Rio 2016 Olympic Games in Pontal in Rio de Janeiro on August 12, 2016. / AFP / Ben STANSALL (Photo credit should read BEN STANSALL/AFP via Getty Images)
AFP BEN STANSALL
China's Wang Zhen competes in the Men's 20km Race Walk during the athletics event at the Rio 2016 Olympic Games at Pontal in Rio de Janeiro on August 12, 2016. / AFP / Ben STANSALL (Photo credit should read BEN STANSALL/AFP via Getty Images)
AFP BEN STANSALL
RIO DE JANEIRO, BRAZIL - AUGUST 12: Zhen Wang of China celebrates winning gold in the Men's 20km Race Walk on Day 7 of the Rio 2016 Olympic Games at Pontal on August 12, 2016 in Rio de Janeiro, Brazil. (Photo by Ryan Pierse/Getty Images)
Getty Images Sport Ryan Pierse