Lacrosse in the United States side of the field at all times. They must also have three players (usually three attackmen) on their offensive side of the ball at all times. The remaining three players (usually midfielders or middies) are free to roam the field as they please during the game. There are ten players on the field at a time. Still each team is allowed a maximum of seven players on their half of the field at a team and six players on their opponents’ side of the field at a time with the goalie being the extra man. Like hockey, substitutions are considered
Box lacrosse Mann Cup, the most prestigious lacrosse trophy in Canada, was contended for under box lacrosse rules for the first time. Previously, the national senior men's lacrosse championship, awarded since 1901, was competed for under field lacrosse rules. The Mann Cup is an annual tournament that presents the champion of the Western Lacrosse Association and Major Series Lacrosse in a best of seven national championship. A few years later, in 1937, the Minto Cup, began being awarded under box lacrosse rules to the junior men's champions. Currently the Canadian Lacrosse Association oversees the Mann Cup, the Minto Cup, the Presidents Cup