Watch BBC Two highlights of the Swimming World Championships in Shanghai. (UK users only)
Men's 200m individual medley final - Great Britain's James Goddard takes on Michael Phelps in the event he has won three Commonwealth Games gold medals in.
Women's 100m freestyle semi-finals - European championship medallist Fran Halsall returns to action following ankle surgery, but she will be among the favourites to reach the 100m freestyle final.
4 x 200m freestyle relay final - The Great Britain team won a bronze medal in Rome two years ago and will be hoping to place on the podium once again in Shanghai.
Women's 200m butterfly - Good medal chance for Britain, Jemma Lowe is the fastest qualifier and will take on best friend and training partner Ellen Gandy in the final.