Closely allied to, and in fact almost identical with blocking, is the making of holes in the line, through which to allow the backs to travel toward the opponents' goal. In this, as in blocking, the main purpose rests in so charging the opponent that he is momentarily put out of the play. The added necessity here is, however, that he shall be put out of the play in a certain direction, thus requiring more finesse and more certain strength and rapidity, in order not only to prevent the opponent from tackling the runner, but also to get him out of the way of the man with the ball, who is coming to a certain point.
The forward who is on the offensive, keeping as close as possible and making use of every inch of room allowed him, should, as before, act instantly and with all the strength at his command. He knows where the play is coming and should maneuver to get all the advantage of position for use in the crucial moment. He should watch his opponent's eyes and, the moment the ball is snapped, should charge forward, rising the moment he meets the enemy and endeavoring to get his own shoulder against the opponent's breast, if such be possible. The impact should carry the opponent back and to the side, the idea being the opening of a lane through which may come the runner with the ball. Aim to get under the opponent always, if this be possible. If he plays very low, aim to get him in such a way that he may first be turned aside and then forced back.
Constant study of an opponent will assist in determining the methods by which he may most effectively be put out of a play. If he is found to be more vulnerable on one side than on the other, the quarter back who is directing the play of the team of which you are a member will become cognizant of the fact and will send the plays at the point where the hole is easiest to obtain.