RIO DE JANEIRO, BRAZIL - AUGUST 17: (L-R) Bronze medalist Kristi Castlin, gold medalist Brianna Rollins and silver medalist Nia Ali of the United States pose with American flags after the Women's 100m Hurdles Final on Day 12 of the Rio 2016 Olympic Games at the Olympic Stadium on August 17, 2016 in Rio de Janeiro, Brazil. (Photo by Matthias Hangst/Getty Images)
