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 . Meanwhile , Oscar Pistorius made history by becoming the first amputee athlete to compete in world championships history . 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 .
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 .