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 the net is called the "crease". Players except for the goaltender may not enter the crease while playing the ball. Punishments for crease infractions include a change of possession, resetting of the time-clock, or a possible two-minute penalty depending on the infraction. Opposing players may not make contact with the goaltender while he is in the crease. Once he leaves the crease, however, he loses all goaltender privileges. Even as box lacrosse grows in the United States, the American goalkeeper is a rarity. The skills required to be a successful field lacrosse goaltender and a successful box lacrosse goaltender are