FIFA 12 Cheats

Sign best players in Manager Mode without paying transfer fee
In Manager Mode, Go to player signing and change the "Transfer" to "Loan". Now enter the future fee of the player (Enter the future fee more than the player transfer fee) and then submit offer. Then the offer will be accepted. When the season is finished. It will ask for the fee, then cancel purchasing and continue. Next season you can do the same thing. That is the way you can bring best players to the club. But you cannot bring players from the rival clubs easily. Most of time they rejects offers. But you can sign more great player from the other clubs.