Bolt disqualified as Blake wins gold

DAEGU: Jamaica's Usain Bolt was disqualified from the final of the men's 100m at the World Athletics Championships as countryman Yohan Blake took gold.

Defending champion Bolt caused shock in the stadium in Daegu as he came out of his blocks well before the gun.

Blake clocked 9.92 seconds to lead home American Walter Dix (10.09) and 2003 world champion Kim Collins (10.10).

But much of the talk will centre on the fate of Bolt, who still has the 200m and 4x100m to come.

Bolt was his usual relaxed self before the race, preening when his name was announced, and the outcome will no doubt lead people to question both his preparation and the false-start rule.