A scan has revealed that England-based Striker Osaze Odemwingie has suffered a torn muscle around his thigh and the Nigeria team doctor will observe him for the next two days to ascertain his fitness.
The player initially said he was nursing a slight hamstring injury he picked up in his English clubs last league game at the weekend.
He had expressed confidence he will be fit to resume training with the rest of the squad on Wednesday, but he could do so with the rest of the squad.