Andy Murray's hopes of being fit for Wimbledon received a blow when he was forced to pull out of next week's Artois Championships at Queen's Club.
Murray missed the French Open with the same injury
The Scot sustained a wrist injury in Hamburg last month which also forced him out of the French Open.
"My wrist is getting better every day but it's just too soon to play," the British number one told his website.
The 20-year-old will have further treatment in an effort to be fit for Wimbledon, which begins on 25 June.
"I've been hitting balls softly and doing strengthening exercises for it, also been getting treatment every day and working out in the gym," he added.
Murray has played only two full matches since his crushing defeat to Novak Djokovic at the Miami Masters Series event in March.
The Scot, who is ranked 11th in the world, is still scheduled to play the Boodles Challenge invitational event which runs from 19-23 June.
"This is a delicate injury and one that can't be rushed," said Five Live's Jonathan Overend.
"With that in mind the logical move now would be to also withdraw from Wimbledon and concentrate on being fully fit for the American hard-court summer - his favourite time of year.
"But there are other warm-up events before Wimbledon that he could play, such as Nottingham, and a return for the big one can't be ruled out at this stage."
Murray lost in the first round at Queen's last year but went on to reach the fourth round at Wimbledon.
There was better news for two other British players as Alex Bogdanovic and Richard Bloomfield have been awarded wildcards for next week's tournament.