Usain injury scare! Bolt needs treatment with just 21 days to go until Olympics.

Usain Bolt has flown to see his German doctor three weeks before the start of the Olympics with what Sportsmail understands is a back injury.

The participation of the world's fastest man at the London Games is  possibly in doubt, though his camp naturally sought to play down the extent of his latest setback.

Bolt's coach Glen Mills said: 'Arising from Usain's participation at the national trials in Kingston this past weekend, where he had a slight problem, after careful assessment I have had to withdraw him from the Diamond League meeting in Monaco on July 20 to give him sufficient time for treatment and time to train and prepare for the Olympic Games in London.'

Read more: http://www.dailymail.co.uk/sport/olympics/article-2169445/London-2012-Olympics-Usain-Bolt-injury-scare.html#ixzz1zpdPhUpk