I think this is just specualtion. Van Persie is
TOO expensive even at £15m! And what's more, we don't need him!!! He is a fantastic player and would definitely add to the fire power but we have bigger problems - Central Mid Field. Man United has more than enough strikers and that is why a world class striker - Berba - has been confined to the bench!
And where would Van Persie play anyway? Lone striker [Where he excels]? I don't think so! No way Rooney is warming up the bench! Behind the striker? I don't think so. He doesn't play very well there! That is custom made for Kagawa who would now have to warm the bench - not likely!
I hope this money will be spent in the mid field. Why should Man U fianance Arsenal's operations? Let them keep Van Persie if they want. They can convince him to sign a new contract or lose him for free at the end of the season but £22m and £220,000/= for a 29 year old is TOO rich - unless he pulls a Giggs!!!
Never count on making a good sale. Have the purchase price be so attractive that even a mediocre sale gives good returns.