England's World Cup concerns over Michael Vaughan grew on Monday when the right-hand batsman was sent for a scan on his right calf.
Vaughan scored a half-century in England's Group A win over Pakistan on Saturday in Cape Town but did not field because of the problem.
England play India on Wednesday in Durban in a game that is likely to decide whether Nasser Hussain's team makes it to the Super Six stage.
Vaughan missed a Test series in Pakistan at the end of 2000 with a torn right calf muscle. The right-hander's career has been blighted by a string of injuries.
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