Box lacrosse The roots of indoor lacrosse are obscure, but its invention has been attributed to one Paddy Brennan, a field lacrosse player and referee from Montreal, who, being annoyed by the constant slowing of play from balls going out of bounds in the field game, experimented with indoor games at the Mount Royal Arena during the early 1920s. Joseph Cattarinich and Leo Dandurand, owners of the National Hockey League's Montreal Canadiens in the 1920s, led the participating ice hockey arena owners to introduce the new sport. In the 1930s, 6 v 6 indoor lacrosse came to be played in the summer
Box lacrosse stick, holding, tripping, or by deliberately displacing the goal, or a defensive player intentionally falls and covers a ball in his own team's crease). In the NLL, a penalty shot is awarded against any team taking a too-many-men penalty in the final two minutes of the game or overtime. Similar to fighting in ice hockey, fighting is tolerated in professional box lacrosse. Professional players are not automatically subject to ejection, but incur a five-minute major penalty. In Canadian Lacrosse Association play, players are assessed a five-minute major penalty plus a game misconduct. Fighting in youth or club level box lacrosse