A curious example of a phenomenon that causes as much hassle for an amateur back four as it does for a Premier League one: the bouncing ball. Letting the ball bounce after a huge drop kick from the opposition keeper is asking for trouble. Never will a manager scream like he does when the ball bounces straight over his most trusted centre-half, allowing the opposition battering-ram in one on one. A bouncing ball dropping from the midday sky may as well be a grenade for all the trouble it causes, except you want to head this thing before it hits the ground. Terrified shouts of ''s ball!' all cling to the air as one, for everybody knows the danger of the long, bouncing ball.