Asamoah Gyan did not train on Friday with the group as he underwent a scan on a thigh problem.
The Ghana captain suffered the problem during Thursday's test game with second-tier side, Asokwa Deportivo at the Baba Yara Stadium in Kumasi.
The results of the scan would determine Gyan's subsequent participation with the team ahead of Sunday's 2014 FIFA World Cup qualifier against Sudan.
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