Fighting in ice hockey by enforcers is an established, if unofficial, part of the sport (especially in North America, where the penalty rules are more permissive); the general procedure in a one-on-one fight is to let it run to its completion and then send both players to the penalty box with five-minute major penalties. Escalations beyond isolated fights, such as when most or all players on the ice begin to fight, known as a line brawl, are prohibited. Players violating these rules face more serious consequences, such as players being assessed game misconduct penalties (being ejected from the game) and suspensions.
