World Athletics Championships

Coverage from the opening day of the World Championships in Osaka, Japan. Highlights include the men's marathon, British heptathletes Kelly Sotherton and Jessica Ennis competing over 100m hurdles and the high jump; Marlon Devonish and Craig Pickering leading the British challenge in the men's 100m heats; and Andy Baddeley in the 1500m. With commentary from Steve Cram, Stuart Storey, Paul Dickenson, Brendan Foster and Jonathan Edwards.