Box lacrosse 1998, the NLL entered into the Canadian market for the first time with the Ontario Raiders. Although 5 of the league's 9 teams are based in American cities, more than two-thirds of the players are Canadian. During play, a team consists of six players: a goaltender and five "runners". A runner is any non-goalkeeper position player, including forwards, transition players, and defenders. Runners usually specialize in one of these roles and substitute off the field when the ball moves from one end to the other. When the sport originated teams played with six runners. However, in 1953 the sixth runner,
Field lacrosse identical, the game play and rules are different". Professional field lacrosse made its first appearance in 1988 with the formation of the American Lacrosse League, which folded after five weeks of play. In 2001, professional field lacrosse resurfaced with the inception of Major League Lacrosse (MLL), whose teams, based in the United States and Canada, play during the summer. The MLL modified its rules from the established field lacrosse rules of international, college, and high school programs. To increase scoring, the league employed a sixty second shot clock, a two point goal for shots taken outside a designated perimeter, and