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 (Senior B national championship) the Founders Cup (Junior B national championship) all under box lacrosse rules. Briefly in 1939, a professional box lacrosse league started up in California, called the "Pacific Coast Lacrosse Association". This four team league also folded shortly after opening. Professional box lacrosse did not return to the United States again until 1968 when the Portland Adanacs and Detroit Olympics franchises played in the National Lacrosse Association, a circuit that folded after one summer season. A new professional indoor lacrosse league was created in the 1970s with the formation of the original National Lacrosse League. This league