Former captain John Terry is a doubt for England's friendly with France on Wednesday after injury forced him out of Chelsea's clash with Sunderland on Sunday.
According to the Blues' website, the central defender experienced a nerve problem in training yesterday leading to "pain in a glut and hamstring muscle".
It is the latest injury worry for both England and Chelsea, with Frank Lampard ruled out for up to a further three weeks after suffering a muscle injury.
While Chelsea manager Carlo Ancelotti would be loath for his player to be risked, especially in a friendly, England boss Fabio Capello has plenty of cover in central defence with Everton's Phil Jagielka having impressed in his recent international outings.
Other injury doubts are Andy Carroll and Gabriel Agbonlahor, who both picked up injuries playing for their clubs on Saturday.
Carroll will be assessed by England's medical staff tonight, with a groin injury threatening to ruin his chances of making his international debut against France.
The 21-year-old Newcastle striker received his maiden call-up to Capello's squad Saturday night, but his involvement with the 24-man party could now be limited to less than a day after the injury he picked up in Saturday's 0-0 draw with Fulham.
His club have confirmed on their official website the player is to report for duty, where he will be looked at by the England team doctors.
West Ham striker Carlton Cole has already been called up as cover for Carroll and Aston Villa's Agbonlahor, who is also struggling with a knock picked up against Manchester United.
Cole joins Carroll, Agbonlahor, Cardiff's Jay Bothroyd and Tottenham's Peter Crouch as the forwards in Capello's squad, with the Italian light on options with Jermain Defoe, Wayne Rooney and Bobby Zamora all out injured.
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