Clare Balding presents coverage from the last day of the Swimming World Championships in Manchester. Among the finals is the men's 50m breaststroke, in which Britain's Christopher Cook won bronze at the last championships in Shanghai two years ago. That was one of just two medals that Team GB claimed at those championships, but they will be expecting to have improved on that haul by the end of this five-day meet. Commentary from Andy Jameson and Adrian Moorhouse.