Ghana's camp is anxiously awaiting the results of Michael Essien�s scan of his knee to determine the extent of the injury.
Essien, who injured his right knee in training on Sunday underwent tests at a hospital in Luanda and could miss a Ghana's clash against Burkina Faso on Tuesday. Randy Abbey, spokesperson of the Ghana Football Association confirmed the midfielder's injury.
"Michael [Essien] suffered a right knee injury after a collision with a couple of teammates in the training session this morning. "He was taken to a local hospital for a scan and we'll get the results back tomorrow [Monday] and then have a clearer idea of whether he can play."
Essien has been struggling with fitness after coming off the bench against Ivory Coast last Friday in Cabinda in a game which Ghana lost 3-1. He arrived in Angola late for the tournament because snow delayed his flight from London and has been struggling to recover from a hamstring injury sustained playing for Chelsea in the Champions League last month.
Ghana are one point behind Burkina Faso and need a win to avoid a first round elimination at the African Nations Cup.