The reigning Olympic gold medalist in the 200 breast, Tatjana Schoenmaker will look to improve upon her 6th place in the 100 breast at the 2019 World Champs.
Claiming silver in the 400 free with a new African Record, Ahmed Hafnaoui was one of several swimmers from the continent that broke national records on Day 1.
2023 World Champs Preview: Tokyo Olympic Rematch Brewing in Women s 100 Fly swimswam.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from swimswam.com Daily Mail and Mail on Sunday newspapers.
Owner of 24 of the top 25 times ever swum and the only swimmer sub-25, Sarah Sjostrom will look to make it five golds in a row at the World Championships.