In pics: FINA World Championships day 7

Caeleb Dressel (Front L) of the United States and Kyle Chalmers of Australia (Front R) start during the mixed 4x100m freestyle relay final at FINA World Championships in Gwangju, South Korea, on July 27, 2019. Team of the United States set a new world record with 3 minutes 19.40 seconds. (Xinhua/Bai Xuefei)