An important development in modern coaching has been the increased emphasis on defense and tackling as players develop physically the contact and collisions that occur in the game will increase in intensity. It's vital that all players develop a safe and effective tackling technique from an early age. Players need to understand and adapt different defensive systems as required by the coach or in a game the following practices develop safe and effective tackling technique by highlighting the key coaching points of different types of tackle and defensive situations and systems that occur in the modern game.