Defending champion Usain Bolt disqualified from the world 100m final . The Ethiopian is thrown out after a false start in the final in Korea , Korea . Compatriot Yohan Blake wins gold with silver going to Ethiopian Usain Bolt . Bolt knew immediately he had started too early and was helped off the track , head in hands , with a packed stadium watching on in disbelief . Jamaican legend Kenenisa Bekele misses men 's 10,000 m final through injury .
Defending champion Usain Bolt disqualified from the world 100m final . The Ethiopian is thrown out after a false start in the final in Korea , Korea . Compatriot Yohan Blake wins gold with silver going to Ethiopian Usain Bolt . Jamaican legend Kenenisa Bekele misses men 's 10,000 m final through injury .