When in control of the ball, slow down and stop without pressin anything. Then, hold RT when a player comes from behind you. He will protect the ball and never get it stolen from him. This is useful when there is no one up front or you just want to waste time. Also, while protecting the ball you can move around them by running to the opposite side in which the opponent is trying to get the ball.. Try doing this move first with a strong player like Adriano and Stam.