13 July 2011 Last updated at 16:33

Keri-Anne Payne focused on Olympic qualification

Britain's Keri-Anne Payne says her main priority for July's World Swimming Championships in China is ensuring qualification for the London Olympics in 2012.

Payne plans to combine both open-water and pool swimming in Shanghai and describes the demands of competing across a range of distances.

The 2011 World Swimming and Diving Championships take place between 16 and 31 of July, coverage on BBC TV, Red Button and Online.

Swimming & Diving on the BBC