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 the net is called the "crease". Players except for the goaltender may not enter the crease while playing the ball. Punishments for crease infractions include a change of possession, resetting of the time-clock, or a possible two-minute penalty depending on the infraction. Opposing players may not make contact with the goaltender while he is in the crease. Once he leaves the crease, however, he loses all goaltender privileges. Even as box lacrosse grows in the United States, the American goalkeeper is a rarity. The skills required to be a successful field lacrosse goaltender and a successful box lacrosse goaltender are