The Red Devils' chances of paving Bale's return to the Premier League are very slim.
But Robson thinks Bale would be a dream acquisition for his old club.
"Bringing Bale in would be a really good signing if it was to happen," said Robson," said Robson.
"The good thing with Bale, and this is what the manager likes, is he can play in two different positions - he can play wide coming in and also as a centre-forward.
"It will be really difficult but if the manager can add him to the squad I think he will be a happy man."
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Gareth Bale could be an unattainable target for Man Utd
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