World number 11 Andy Murray is a doubt for the Wimbledon Championships, which start in the last week of June.

Murray has been forced to pull out of the French Open because a wrist injury, sustained when leading Filippo Volandri 5-1 in the Hamburg Open, has not healed.

"I have just got the cast off and will start treatment tomorrow and take it day by day," said the Scot, who celebrated his 20th birthday last week.

"I am not going to make any decisions on the grass yet.

"I am going to see the doctor in a week to see how it feels, and how much the inflammation has settled.

"One real positive from the injury is that I can get in the gym six days a week and work on my cardio and my leg strength."