Katarina Johnson-Thompson and Jessica Ennis-Hill set to compete in Beijing

Britain's hepathlon champions will be giving it both barrels when they go head-to-head in te World Athletics Championships in Beijing - the heptathlon 100 metre hurdles will be the opening event.

Katarina Johnson-Thompson and Jessica Ennis-Hill at this year's Great City Games in Manchester.

There will be realistic medal hopes for Great Britain - the colour and distribution will also be affected by Canada's Brianne Theisen-Eaton who has been on good form this year.

Katarina also has a good shot at the long jump in which she has excelled again this year.