Helen Skelton introduces coverage of the World Aquatics Championships in Hungary.

Today's programme includes the men's 200m freestyle, in which Britain's James Guy is the defending champion. American superstar Katie Ledecky is likely to begin as red-hot favourite for the women's 1,500m freestyle, while the Hungarian crowd will be hopeful of seeing triple Olympic champion Katinka Hosszu victorious in the women's 100m backstroke.

Expert analysis is provided by double Olympic champion Rebecca Adlington and six-time world champion Mark Foster. Show less