Cheng Camille, Haughey Siobhan, Ho Nam Wai and Tam How Lam of Hong Kong in act at preliminary of women’s 4x100m freeestyle during 18th Fina World Championships Gwangju 2019 at Nambu University Municipal Aquatics Centre, Gwangju, on 21  July 2019, Korea.  Photo by : Ike Li / Prezz Images