Athletics: World Trials

John Inverdale is at the Alexander Stadium in Birmingham to present live coverage of the World Championships trials, with the winners of each event effectively booking their places on the Great British plane to Berlin. Among a whole host of finals on the final day is the women's 800m, which is turning into a real strength for Great Britain. Already this season Jenny Meadows, Marilyn Okoro and Jemma Simpson have got very close to the two minute mark and a handful of rivals are lined up behind them to make this one too close to call. Commentary comes from Steve Cram, Paul Dickenson and Jonathan Edwards