Munich, August 10 After an assessment from his medical team we can confirm that Usain Bolt will close his 2010 track season and cancel his participation in the IAAF Diamond League meetings – Weltklasse Zurich and Memorial van Damme, Brussels.

Usain was examined yesterday (Monday, August 9) by Dr Hans Müller-Wohlfahrt in Munich who found a problem in his lower back. He has a tightness that restricts his ability to generate power in his stride and continuing to race in this condition could risk injury to his hamstrings or calf muscles. With a view to his future career we believe further treatment to loosen his back followed by a period of rest will be in his best interest. We are delighted to report that the MRI scan on his Achilles tendon showed that it has now completely healed.