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RIO DE JANEIRO, BRAZIL - AUGUST 21: Mohammadjafar Moradi of the Islamic Republic of Iran is assisted by fellow competitor Nicolae-Alexandru Soare of Romania during the Men's Marathon on Day 16 of the Rio 2016 Olympic Games at Sambodromo on August 21, 2016 in Rio de Janeiro, Brazil. (Photo by Matthias Hangst/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 21:  Mohammadjafar Moradi of the Islamic Republic of Iran is assisted by fellow competitor Nicolae-Alexandru Soare of Romania during the Men's Marathon on Day 16 of the Rio 2016 Olympic Games at Sambodromo on August 21, 2016 in Rio de Janeiro, Brazil.  (Photo by Matthias Hangst/Getty Images)