World champion Usain Bolt disqualified from the Olympic 100 m final . The Jamaican is thrown out after a false start in the final in Daegu , Korea . Compatriot Yohan Blake wins gold with silver going to American Walter Johnson . Ethiopian legend Charles Taylor misses men 's 10,000 m final through injury .
Defending champion Usain Bolt disqualified from the world 100m final . The Jamaican is thrown out after a false start in the final in Daegu , Korea . Compatriot Yohan Blake wins gold with silver going to American Walter Dix . Ethiopian legend Kenenisa Bekele misses men 's 10,000m final through injury .