Rebecca Adlington overjoyed with World Championships silver

Rebecca Adlington is delighted to claim a silver medal in the 400m freestyle at the World Championships in Shanghai.

The 22-year-old double Olympic champion managed to fight her way into second place from an outside lane after a poor qualifying heat, finishing behind the "amazing" Federica Pellegrini of Italy and ahead of France's Camille Muffat.

Adlington is now hoping for more success in the 200m and 800m contests.