If you want to buy an expensive player (Henry, Ronaldo, Zidane, etc.) but you do not have enough money, simply go to edit mode and change everything in the player's stats (Speed, Balance, Heading, etc.) to "1". Then, go to Master League mode. Notice that the player will be extremely cheap, like any weak player. Buy the cheap player. After you have bought him, save the game and go to edit mode. Select the player and press Triangle (default), which will restore the player's original abilities and stats.