James Dasaolu a doubt for world indoor championships with leg injury

• Sprinter pulls up clutching leg in 60m final in Birmingham• Dwain Chambers advises Dasaolu to give Sopot a miss James Dasaolu faces an anxious wait to see whether he will be fit for the world indoor championships at the start of next month after leaving the Birmingham Indoor Arena in a wheelchair, having pulled up clutching his left leg during the men's 60m final. Dasaolu's smile as he departed was rueful; the wave to the crowd regal yet forlorn. Initially he thought he had suffered cramp ...