Gold medalist Ariarne Titmus (C) of Australia, silver medalist Katie Ledecky (L) of the United States and bronze medalist Leah Smith of the United States pose during the awarding ceremony after the women's 400m freestyle final at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, July 21, 2019. (Xinhua/Bai Xuefei)