The aim of the defending side is to stop the player with the ball, either by bringing them to ground (a tackle, which is frequently followed by a ruck), or by contesting for possession with the ball-carrier on their feet (a maul). Such a circumstance is called a breakdown and each is governed by a specific law.
Tackle A player may tackle an opposing player who has the ball by bringing them to ground. Once tackled, a player must immediately release the ball, either by passing to a teammate or placing it on the ground, and the tackler must release them and move away. After the ball has been released by a tackled player, players from either side may try to take possession of the ball. Tacklers cannot tackle above the sternum (the neck and head are out of bounds), and the tackler has to attempt to wrap their arms around the player being tackled to complete the tackle. It is illegal to push, shoulder-charge, or to trip a player using feet or legs, but hands may be used (this being referred to as a tap-tackle or
ankle-tap). Tackles that involve lifting a player and then forcing or dropping them to the ground head first (called a tip tackle or
spear tackle) have been deemed particularly dangerous. A player performing this sort of tackle would typically be sent-off. Tackling is the only way to stop a player from running and is a major part of any team's defence. A good tackle stops the player from moving forward and prevents them from passing the ball. It can also put an opponent under pressure and force the ball loose. There are five styles of tackles commonly used by players: the side, rear, passive front, active front and smother. The aim of the active front tackle is to drive the opponent backwards, while the smother tackle prevents the opposing player passing the ball. Once the player has been brought to ground, the tackler typically tries to get to their feet quickly and compete for the ball. Other players arriving at the tackle will also compete for the ball. The main objective of the player being tackled is to keep possession of the ball. They will try to keep on their feet until teammates arrive in support. If brought to ground, they can immediately pass the ball (offload) or place it on the ground in a position advantageous to their team. The supporting teammates can continue running the ball or form a ruck or maul.
Ruck A ruck is formed when one or more players from each side bind onto each other with the ball on the ground between them. A ruck often ensues following a tackle. This physical contact, or binding, is generally by locking shoulders while facing each other. Additional players may join the ruck, but must do so from behind the rearmost foot of the hindmost teammate in the ruck; this is often referred to as "coming through the gate". If players do not go "through the gate", it is a penalty to the opposition (“joining from the side” or “in at the side”). Any player not taking part in the ruck and maul must retreat behind the
offside line, a notional line that runs parallel to the goal-lines through the rearmost foot of their hindmost teammate in the ruck or maul. In a ruck, no player may use their hands to win the ball. Instead, each side attempts to push the other side off the ball or use their feet to hook it back towards their own side, an action known as
rucking. Players attempt to arrive at the ruck first, drive forward and bind onto the opposition. Once a ruck is formed the defenders cannot use their hands, making it easier for the attacking team to retain possession. The defenders try to slow the ball from coming out of the ruck, which allows their team more time to organise their defence. This may not be done by using their hands, or lying over the ball, or going to ground deliberately. Such infringements result in penalties if seen by the referee, although the number of bodies involved in the ruck can make this difficult. A legal method used to slow the ball down is counter-rucking, when the defenders drive players back over the ball. All of these amendments were approved unanimously by the World Rugby Council and added to the laws of the game in 2018.
Maul A maul occurs when a player carrying the ball is held by one or more opponents, and one or more of the ball carrier's teammates bind on the ball carrier. Once a maul has formed other players may join in but, as in a ruck, they must do so from their own side by going through the middle or through the top as long as the maul is stationary. If the maul stops moving forward, and the ball is not available to be played, then the referee awards a scrum to the side not in possession when the maul began (unless the maul was formed immediately after a player received a kick other than a kick-off). The tactic of the rolling maul occurs when mauls are set up, and the ball is passed backwards through the players' hands to one at the rear, who rolls off the side to change the direction of the drive. This tactic can be extremely effective in gaining ground and both doing it properly and preventing it takes great skill and technique. It is a tactic most commonly used when the attacking side is inside the defending side's 22 meter line. It was once illegal on safety grounds to pull down a maul, causing the players to fall to the ground. With the introduction of the
Experimental Law Variations it was permitted to pull down a maul if the forward momentum of the attacking side had been neutralised or reversed, subject to maintaining safety. This decision was reversed to make the pulling down of a maul illegal once more. On the other hand, a maul is not properly formed if the ball carrier binds on to a teammate from the rear, and both of them then drive into one or more opponents – or if the ball-carrier breaks off from the back of the maul, which continues to drive forward. The players in front are either accidentally or deliberately offside and the referee awards either a
scrum or a penalty to the opposing side, depending on whether the infringement was viewed as accidental or deliberate. The tactic is sometimes referred to by players, commentators, and referees by the colloquial term "truck and trailer". ==Restart kicks==