Ghana captain Asamoah Gyan is a serious doubt for the Black Stars return leg World Cup qualifier against Congo on Tuesday.
The 31-year-old missed the Black Stars' training on Sunday in Accra ahead of their trip to Brazzaville.
Gyan suffered a groin injury during Friday's frustrating 1-1 draw with the Red Devils in Kumasi.
He was set to undergo a scan on Saturday but it is assumed that the degree of the injury will not allow him to play in Tuesday's return leg.
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Prior to the international break, Gyan had been battling a back pain which forced him to miss their second Turkish Super Lig match.
Gyan remains Ghana's all-time top scorer with 51 goals.
Ghana's contingent are expected to leave Accra on Monday to honour the assignment.