The USA's Allen Johnson reaches the next round after finishing second in his 110m hurdles heat

China's Xiang Lu also makes the semi-finals after coming home ahead of Redel�n dos Santos

American Bryan Clay maintains his decathlon lead in the discus, and eventually takes the top prize

Britain's Nathan Douglas goes out after falling short of the qualifying distance in the triple jump

France's Christine Arron wins the fourth heat of the women's 200m in a time of 22.89 seconds

Roman Sebrle consolidates second place in the decathlon after a season's best in the pole vault

There is more British disappointment as Christian Malcolm and Marlon Devonish go out in the 200m semis

But American Justin Gatlin keeps alive his hopes of a sprint double after following home Tyson Gay

Olympic champion Tonique Williams-Darling takes gold in the women's 400m ahead of Sanya Richards

Bahrain's Rashid Ramzi claims gold in the 1500m final, holding off a strong finish from Morocco's Adil Kaouch