Gold medalist Dina Asher-Smith (C) of Britain, silver medalist Brittany Brown (L) of the United States and bronze medalist Mujinga Kambundji of the Switzerland pose for photos during the medal ceremony of the women's 200m at the 2019 IAAF World Championships in Doha, Qatar, Oct. 3, 2019. (Xinhua/Li Ming)

Gold medalist Dina Asher-Smith (C) of Britain, silver medalist Brittany Brown (L) of the United States and bronze medalist Mujinga Kambundji of the Switzerland pose for photos during the medal ceremony of the women's 200m at the 2019 IAAF World Championships in Doha, Qatar, Oct. 3, 2019. (Xinhua/Li Ming)

Bronze medalist Mujinga Kambundji of the Switzerland reacts during the medal ceremony of the women's 200m at the 2019 IAAF World Championships in Doha, Qatar, Oct. 3, 2019. (Xinhua/Li Ming)

Gold medalist Dina Asher-Smith of Britain reacts during the medal ceremony of the women's 200m at the 2019 IAAF World Championships in Doha, Qatar, Oct. 3, 2019. (Xinhua/Li Ming)

Silver medalist Brittany Brown of the United States poses with the medal during the medal ceremony of the women's 200m at the 2019 IAAF World Championships in Doha, Qatar, Oct. 3, 2019. (Xinhua/Li Ming)