China's Sun Yang competing at the world championships in Kazan, Russia, last month. Sun is on the wish-list for the Hong Kong leg of the World Cup. Photo: AFP

Champion swimmers Sun Yang and Katie Ledecky targeted for Hong Kong leg of World Cup

Superstars invited to take the plunge in lucrative competition, which also serves as a qualifier for Rio Olympics

China's Sun Yang competing at the world championships in Kazan, Russia, last month. Sun is on the wish-list for the Hong Kong leg of the World Cup. Photo: AFP
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