Goaltender (box lacrosse) long passes to teammates that are attempting to breakaway on unsuspecting defenders. Box lacrosse goaltenders are also encouraged to be aggressive stick checkers around the ball and ferocious cross-checkers when needed (cross-checking is legal in box lacrosse). If a goaltender leaves the crease with possession of the ball, opponents are allowed to cross-check the goaltender as long as there is no attempt to injure. Box lacrosse goalies play in front of a four by four foot net at most levels, unlike a field goalie who plays in front of a six by six net. At the National Lacrosse League, Major,
Field lacrosse ten players on the field: a goalkeeper; three defenders in the defensive end; three midfielders free to roam the whole field; and three attackers attempting to score goals in the offensive end. Players are required to wear some protective equipment, and must carry a lacrosse stick (or crosse) that meets specifications. Rules dictate the length of the game, boundaries, and allowable activity. Penalties are assessed by officials for any transgression of the rules. The game has undergone significant changes since Beers' original codification. In the 1930s, the number of players on the field per team was reduced from twelve to