Gold medalist Caeleb Dressel (C) of the United States, silver medalist Kyle Chalmers (L) of Australia and bronze medalist Vladislav Grinev of Russia pose for photos after the men's 100m freestyle final at the Gwangju 2019 FINA World Championships in Gwangju, South Korea, July 25, 2019. (Xinhua/Wang Jingqiang)