There's been a shock at the World Athletics Championships in South Korea with the world record holder Usain Bolt disqualified from the final of the 100m after a false start. Alex Capstick watched it happen.

Usain Bolt has made few errors in his brilliant career, but this will go down as a major

blemish

on his record. Victory appeared to be

virtually

guaranteed, but this time, Usain Bolt messed up on the big stage. He knew immediately he'd left his starting blocks before the gun had fired. There's no second chance nowadays. For once, the great entertainer was visibly angry. His shirt had already been flung to the ground before he left the track, banging his head with his hands in frustration. His Jamaican compatriot Yohan Blake eventually took the gold medal, but this world championship final will be remembered for the man who didn't start.

In football, the English Premier League has seen one of its most surprising scorelines for years with the champions Manchester United beating Arsenal by eight goals to two at Old Trafford. The scale of the victory surprised even United's manager Alex Ferguson.

"When you play Arsenal, you don't expect to have scored so many goals. But when you see Arsenal's team is so weakened that we had expected to score, and I expected us to win because it was a very, very weakened team. And Arsenal may be missing eight players today. You know, it's so unfortunate for them."