RIO DE JANEIRO, BRAZIL - AUGUST 18: Morolake Akinosun, Tianna Bartoletta, English Gardner and Allyson Felix of the United States react after the round one Women's 4 x 100m Relay Re-Run on Day 13 of the Rio 2016 Olympic Games at the Olympic Stadium on August 18, 2016 in Rio de Janeiro, Brazil. (Photo by Cameron Spencer/Getty Images)
