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,
Box lacrosse in unused hockey rinks. Canadians adopted the new version of the sport quickly. Eventually, it became the more popular version of the sport in Canada, supplanting field lacrosse. The form was also adopted as the primary version of the game played on Native American reservations in the US and Canada by Iroquois and other Native peoples. It is the only sport in which the American indigenous people are sanctioned to compete internationally, participating as the Iroquois Nationals. However, many field lacrosse enthusiasts viewed the new version of the sport with negativity. The first professional box lacrosse games were held in