Starsport understands the Manchester United boss 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. Moyes has defended the striker in public several times this season and denied reports of a rift between the duo. But now it is understood he has serious doubts about whether Van Persie can still be part of his long term plans as he looks to rebuild his crumbling team. Starsport exclusively revealed in November how Van Persie had become disillusioned with life at United and was not convinced by Moyes’s training methods. Van Persie has been forced to take a back seat this season and watch Wayne Rooney re-establish himself as United’s talisman once again.