Have your players make two lines facing the goal, about 15 feet apart, and 30 to 40 yards from the goal. Throw a ball in the middle and in front of the lines. When you throw the ball, tell the first two players to GO! The first player to the ball is on offense, and the other is now defense. The offense tries the score, and the defense tries to defend. Mix it up by putting in a keeper to help the defense.