Chelsea and England captain John Terry will have a scan on his foot injury on Monday.
The centre-back admitted on Saturday the deadline of being fit to play for England against Switzerland, Fabio Capello's first match in charge, early next month is a "small target".
The defender reiterated that prognosis on Sky Sports on Sunday, adding he is likely to have a clearer picture after another check on how his injury is healing.
Asked when he expects to be playing again, he said: "I am hoping two or three weeks.
"I have my scan tomorrow morning."