With Olympic gold medallist Brian Clay missing through injury fellow American Trey Hardee gets his decathlon off to a winning start with a stunning time of 10.45 in the 100m
World record holder Dayron Robles starts slowly in the 110m hurdles heat before finding his stride to finish third - Briton William Sharman also takes third place in his heat to qualify for the semi-finals
Andrew Turner, who injured his hamstring a week ago, battles to finish the 110m hurdles in 13.73 - a time not quick enough to qualify for the semi-finals
A seventh-place finish is not enough to put Gianni Frankis through to the hurdles semi-finals in Berlin
Olympic champion Tirunesh Dibaba of Ethiopia pulls out of the women's 5,000m with an ankle injury but compatriot Meseret Defar sets the fastest qualifying time of 15.15.45.
What no gold hair? World triple jump champion Philips Idowu picks up his long-awaited gold medal alongside arch-rival and silver-medallist Nelson Evora of Portugal and Cuban bronze winner Alexis Copello
In the 400m Rob Tobin mistimes his opening 200m leaving him well behind the field with too much to do to get back into contention
Olympic finalist Martyn Rooney (left) runs a disappointing race in lane eight to finish seventh and miss out on a second major final in two years
After a solid start, Usain Bolt is able to take it easy over the final few metres as he qualified for the 200m final with ease
Marlon Devonish (centre) sees his hopes of joining Bolt disappear as he finishes seventh in the second semi final
But there is success for Jenny Meadows as she storms down the final 100m to take 800m bronze behind South Africa's Caster Semenya and Janeth Jepkosgei of Kenya
Semenya's triumph came only a few hours after the International Association of Athletics Federations made public it's demands that she undergo a gender test to ensure she can compete as a women
Jamaica take gold and bronze in the women's 100m hurdles through winner Brigitte Foster-Hylton (right) and Delloreen Ennis-London
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