Powell out of World Championships with groin strain

By Mike Rowbottom in Daegu

asafa_powell_and_usain_bolt_25-08-11August 25 - Usain Bolt's task of defending his world 100 metre title here became easier here with the news that his friend and colleague Asafa Powell had withdrawn because a recurrence of the groin injury which prevented him running at the Samsung Diamond League meeting in London earlier this month.