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Live coverage from Berlin as the eyes of the world focus on the home straight of the Olympic Stadium track for the final of the men's 100m, the blue riband event of the nine-day global competition.

World record-holder Usain Bolt became a sprint sensation at the Olympic Games in Beijing and is hoping to add the world crown to his ever-growing list of accolades. British heptathlete Jessica Ennis will also be going for gold as the javelin and 800m disciplines bring her event to a close. Meanwhile, Christine Ohuruogu and Nicola Sanders are back in action as the women's 400m reach the semi-final stage.