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
Lacrosse in the United States MLL uses a two-point line on its field that sits sixteen yards from the front of the goal. They also have recently implemented a sixty second shot clock which speeds up an already fast paced game. In addition to Major League Lacrosse which is played outdoors in the summer, the National Lacrosse League is a box lacrosse league from January to June. Because of these differing schedules, many current professional lacrosse players will start the year off in box lacrosse and end with outdoor lacrosse in the summer. Box lacrosse is a slightly different version of traditional lacrosse and is