Is this for field or box?
Field:
Ten players in total (1 goalie, 3 long-poles, 3 middies, and 3 attack).
Goalie and long-poles line up on/behind the restraining line on the defensive end.
Attck line up on/behind the restraining line in the attack zone.
One middie lines up in the faceoff circle, and the two others line up on the wings.
http://www.europeanlacrosse.org/mensfield.gif
Game starts once the whistle blows. Exact timmings depends on the league.