New rules explained

Substitutions: Three additional substitutions are allowed in extra-time but not from those already yellow- or red-carded.

New hurling and football yellow card offences: To pull down an opponent; trip an opponent; deliberately body collide with an opponent after he has played the ball or for the purpose of taking him out of a movement of play; bring an arm or hurley around the neck of an opponent; wrestle with an opponent on the ground, and away from play; remonstrate in an aggressive manner with a match official; use hurley in a careless manner.

Black card offences: To threaten/use abusive or provocative language/gestures towards an opponent; threaten or use abusive or provocative language or gestures to a team-mate; engage in rough play; make a "pull" with the hurley from behind and around the body of an opponent that is not consistent with an attempt to play the ball; throw the hurley in a manner which constitutes a danger to another player; pull/take hold of a faceguard or any other part of an opponent's helmet; attempt to achieve advantage by feigning a foul or injury; hold an opponent with the hand(s); charge an opponent in the back or front.

Football alternatives: To block or attempt to block with the boot when opponent is kicking from the hand; prevent or attempt to prevent an opponent from lifting or kicking the ball off the ground by striking opponent's hand, arm, foot or leg with the boot; use the fist on, or around the body for the purpose of dispossessing him of the ball.