Mo Farah successfully defended his 10,000 metres title while Christina Schwanitz took gold in the shot put at the IAAF World Championships in Beijing - while Usain Bolt and Justin Gaitlin were also in action in the 100 metres heats

Script: It was time to lay ghosts of the past to rest for Mo Farah - here at the Bird's Nest stadium in Beijing he crashed out of the 5000 metres in the 2008 Olympics before making the final. This time in the 10,000, he ensured he retained his World Championship gold medal - tested by the Kenyans but accerating home, despite a near tumble, with a breezy 54 second final lap to win in 27 minutes 1.13 seconds

Usain Bolt, who won three golds here in 2008 - ran to rapturous applause to advance in the 100 metre heats with a fifth fastest time of 9.96, well below his best. The fastest time went to Justin Gatlin, who clocked 9.83 seconds

In the shot put, Germany's Christina Schwanitz won with a best throw of 20.37 meters, relegating home favourite Gong Lijiao to second place

And Nineteen-year-old Ghirmay Ghebreslassie became the youngest winner of the marathon, securing Eritrea's first ever World Championship gold medal.