Manchester United have confirmed England captain Rio Ferdinand will miss Sunday's Carling Cup final due to a back injury.

The central defender was expected to return to the Red Devils' squad, for their midweek Premier League match against West Ham United, following a four-match suspension however the former Hammer was forced to sit out the game due to injury and Manager Sir Alex Ferguson has ruled him out for the final against Aston Villa.

"He got a twinge in his back in training," Ferguson told "He'd been training great, too, with no mishaps at all with his back.

"But when you get these twinges you can't take a chance. He won't be ready for Sunday, so unfortunately for him he'll miss a couple of games, I think."

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