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 two referees: a lead official and a trail official. In NLL games there are three officials per game. The goaltender's responsibility is to prevent the opposition from scoring goals by directly defending the net. Box lacrosse goaltenders equipment includes upper body gear (measuring no more than up and out off the shoulder—much larger than similar gear for field lacrosse or ice hockey goaltenders), large shin guards that must measure no more than at the knee, at the top of the shin and at the ankle, and a field lacrosse helmet or ice hockey goalie mask. The to radius area surrounding