Katie Ledecky Leon Marchand Léon Marchand Caeleb Dressel Adam Peaty Summer McIntosh Torri Huske Michael Phelps Gretchen Walsh Regan Smith Gary Hall Jr. Ryan Murphy Simone Manuel Medals Sarah Sjöström Daniel Wiffen Ariarne Titmus Pan Zhanle COVID-19 Kaylee McKeown Nic Fink Luana Alonso Retirement Kate Douglass Henrik Christiansen Cameron McEvoy Alex Walsh Bobby Finke Siobhan Haughey Team GB Hunter Armstrong Victor Johansson Ana Carolina Vieira David Popovici Events Doping Allegations Cam McEvoy Sports Partnerships South Korea Lani Pallister Lilly King New Jersey Swimmers Agostina Hein Testing Protocols Andre De Grasse Mental Health Qin Haiyang Gary Hall Jr Tamara Potocka American Swimmers Sun Jiajun Yang Junxuan Female Athletes Mollie O'Callaghan Zac Stubblety-Cook Alex Shackell Performance Mona McSharry Health Concerns Zhang Yufei Palestinian Athletes Emma Weber Erin Gemmell Australian Swimmers Katie Grimes Medal Performances Mollie O’Callaghan Competition Infection Prevention Doping Controversies Sarah Sjostrom