Adlington broke new ground for British swimming when she won two gold medals in Beijing, and she defends both the 400m and 800m freestyle titles in London, BBC reported. First up is the tougher of the two for Adlington, the 400m, in which she is expected to face a strong challenge from the likes of Italy\'s Federica Pellegrini, France\'s Camille Muffat and American Allison Schmitt.