American women take to track with 400 meter hurdles rivalry
Brittney Reese, of United States, competes in a qualification for the women's long jump at the 2020 Summer Olympics, Sunday, Aug. 1, 2021, in Tokyo. (AP Photo/Martin Meissner)

Brittney Reese, of United States, competes in a qualification for the women's long jump at the 2020 Summer Olympics, Sunday, Aug. 1, 2021, in Tokyo. (AP Photo/Martin Meissner)

Jul. 31, 2021 10:07 PM EDT
Dalilah Muhammad, of United States, wins a heat in the women's 400-meter hurdles at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo. (AP Photo/Martin Meissner)

Dalilah Muhammad, of United States, wins a heat in the women's 400-meter hurdles at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo. (AP Photo/Martin Meissner)

Jul. 30, 2021 08:58 PM EDT
Sydney Mclaughlin, of United States, wins a heat in the women's 400-meter hurdles at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo. (AP Photo/Martin Meissner)

Sydney Mclaughlin, of United States, wins a heat in the women's 400-meter hurdles at the 2020 Summer Olympics, Saturday, July 31, 2021, in Tokyo. (AP Photo/Martin Meissner)

Jul. 30, 2021 08:50 PM EDT