Wayne Rooney faces 3 weeks out with knee injury

Manchester: Manchester United striker Wayne Rooney faces spending up to three weeks out with a knee injury.

Manager Alex Ferguson says the injury was sustained while the player tried to hit a volley toward the end of training on Tuesday.

Ferguson says Rooney "strained a ligament behind the knee. It's unfortunate, and he could be out for two to three weeks."

Manchester United striker Wayne Rooney faces spending up to three weeks out with a knee injury.

The England international missed United's 4-3 win over Newcastle on Wednesday. Ferguson didn't specify which knee was injured.

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