Five-times Olympic gold medallist Kaylee McKeown has prematurely ended her Swimming World Cup campaign in Shanghai, citing mental health concerns. Australia's McKeown, who became the first woman to retain both the 100m and 200m backstroke Olympic titles this year,

The Australian star, who retained her 100m and 200m backstroke Olympic titles in Paris this year, made the decision after competing on day one of the leg in Shanghai on Friday.