China's Liu Hong celebrates winning the Women's 20km Race Walk during the athletics event at the Rio 2016 Olympic Games in Pontal in Rio de Janeiro on August 19, 2016. / AFP / Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 19: Hong Liu of China celebrates as she crosses the line to win gold in the Women's 20km Walk final on Day 14 of the Rio 2016 Olympic Games at Pontal on August 19, 2016 in Rio de Janeiro, Brazil. (Photo by Julian Finney/Getty Images)
RIO DE JANEIRO, BRAZIL - AUGUST 19: (L-R) Gold medalist, Hong Liu of China, poses on the podium during the medal ceremony for the Women's 20km Race walk on Day 14 of the Rio 2016 Olympic Games at the Olympic Stadium on August 19, 2016 in Rio de Janeiro, Brazil. (Photo by Phil Walter/Getty Images)
(LtoR) Mexico's Maria Guadalupe Gonzalez (silver medal), China's Liu Hong (gold medal) and China's Lu Xiuzhi (bronze medal) pose during the podium ceremony for the Women's 20km Race Walk during the athletics event at the Rio 2016 Olympic stadium in Rio de Janeiro on August 19, 2016. / AFP / Fabrice COFFRINI (Photo credit should read FABRICE COFFRINI/AFP/Getty Images)
