A respected transfer-market source said: â€śUnited effectively ran out of money in the summer in terms of their budget for signings.
â€śThey wanted Baines but couldnâ€™t afford him after paying ÂŁ22million for Van Persie.
â€śBut that deal was too good to miss and Fergie has been proved right in pushing out the boat for RVP.â€ť
United are not the only big club who would like to sign the ex-Wigan man. Liverpool have a long-standing interest but that would be a tricky move for Baines.
Bayern Munich also made a move for a player who is now genuine competition for Chelseaâ€™s ÂAshley Cole for the England left-back role.
But Baines says he would prefer to continue in the Premier League, rather than move to Germany.