Continued coverage of the opening day of the World Championships from Berlin. Jessica Ennis will hope for a strong showing in the shot put and 200m as the first day of the heptathlon competition draws to a close. British sprinter Simeon Williamson takes on the likes of Usain Bolt and Tyson Gay as the men's 100m reaches the quarter-final stage. The evening's two finals are the men's shot put and women's 10,000m, where a host of African stars will look to succeed Ethiopia's Tirunesh Dibaba as the world champion.