RIO DE JANEIRO, BRAZIL - AUGUST 16: Abbey D'Agostino of the United States (R) is assisted by Nikki Hamblin of New Zealand after a collision during the Women's 5000m Round 1 - Heat 2 on Day 11 of the Rio 2016 Olympic Games at the Olympic Stadium on August 16, 2016 in Rio de Janeiro, Brazil. (Photo by Ian Walton/Getty Images)

RIO DE JANEIRO, BRAZIL - AUGUST 16:  Abbey D'Agostino of the United States (R) is assisted by Nikki Hamblin of New Zealand after a collision during the Women's 5000m Round 1 - Heat 2 on Day 11 of the Rio 2016 Olympic Games at the Olympic Stadium on August 16, 2016 in Rio de Janeiro, Brazil.  (Photo by Ian Walton/Getty Images)