Usain Bolt undergoing treatment in Munich

Usain Bolt is having treatment for a hamstring injury in Germany but is still expected to compete at Friday's meeting in the Czech Republic.

The 29-year-old's coach, Glen Mills, said the Jamaican had tweaked a hamstring during Saturday's Cayman Invitational meeting.

Bolt, who has collected 11 individual sprint gold medals at Olympic and World Championship level during his illustrious career, clocked a modest 10.05 seconds while winning over 100m.

Bolt is being treated in Munich by Hans-Wilhelm Muller-Wohlfahrt who has looked after his affairs for much of the past decade.

As for the injury, Mills told a local radio station in Jamaica: "If you noticed in the race he was grimacing towards the end."

Bolt is targeting his third consecutive sprint double at this summer's Olympic Games in Brazil and, following last Saturday's season-opener, said: "It wasn't the best but as long as I come out injury free, that's the key thing.

"I didn't feel as smooth as I wanted to but as I always say, it's hard to just come into your first race and do extra well.

"I am never worried. I've been in worse situations. It's just race rusty. I can tell. I could feel the difference from when you are flying from when you are not."