England skipper Rio Ferdinand suffered an injury worry during the squad's first training session in South Africa on Friday.

The Manchester United central defender sustained a knee injury during the final couple of minutes and has gone to hospital to undergo a scan.

England manager Fabio Capello is uncertain at this stage of the severity of the injury. But he confirmed: "Rio picked up a knee problem in training. It happened near the end. He has gone to hospital for a scan and we will have to see how things are."