Manchester United boss David Moyes has concerns over the attitude of Robin van Persie. The Daily Star says Moyes has told friends and colleagues in private that he is worried about the Dutch striker's contribution to the squad and input around the camp.

Van Persie was the toast of United last season after firing them to the title in his first campaign at Old Trafford.

But he has looked a shadow of his former self this time round due to a string of injuries and some erratic form.

Rumours he wants to leave the champions refuse to disappear, while several of his team-mates fear he is unhappy at Old Trafford.

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