Bolt will have to qualify for 100 metres at world championships
Usain Bolt will have to qualify for the 100 metres at this year's world championships after Jamaican officials decided the country's automatic entry into the race should go to his training partner Yohan Blake.
DAEGU, South Korea Usain Bolt won the men's 200 meters at the world championships in 19.40 seconds Saturday, the fourth fastest time in history.