They still believe there is room for a compromise whereby Ronaldo would stay at Old Trafford for another 12 months and United's pride would not be dented, having seen off Real's bid to bully their rivals into letting them have their way.
But Ferguson has backed chief executive David Gill's immovable stance over Ronaldo's contract and future. United's manager is fuming with Real's arrogance, saying: "They ride roughshod over everyone but they won't do it with us."
Ronaldo, who is having a delayed minor operation for a foot injury, is due back for pre-season training in three weeks but plans a formal weekend statement and will hope he does not have to turn up at Carrington.