Usain Bolt's troubled preparation for the defence of his Olympic sprint crowns continued yesterday when the Jamaican was forced to pull out of the Diamond League meeting in Monaco on July 20.
Bolt, who was beaten into second place in the 100m and the 200m at the Jamaica trials, was suffering from a "slight problem", said his coach, Glen Mills.
Bolt was scheduled to run the 200m in Monaco in what would have been his last race before the London Games.
Mills said: "Arising from Usain's participation at the 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 to give him sufficient time for treatment and time to train and prepare for the Games."
Bolt insists there is no doubt over his participation in London, but his build-up to defending his 100m and 200m titles has been problematic.