Two teams of eleven players are on the field at one time. (Younger divisions play with fewer players. For example, U6 plays 3 v 3, U8 plays 5 v 5, U10 plays 6 v 6, and U12 plays 8 v 8) Generally, when teams are playing eleven a side, players line up with three forwards, three midfielders, four defenders, and one goalkeeper. That formation is referred to as 4-3-3. Other formations include 4-4-2, and 3-4-3. Any player on the field may score a goal and every player should help defend when necessary. Substitutions may take place only when play is stopped, and only on a “goal kick” or “throw in.”

Forwards (one center striker and two wings) - The team’s primary offense and goal scorers. Their role is to advance the ball from midfield toward the opposing goal by dribbling, passing, and shooting.

Midfielders (or Halfbacks) - Play between the forwards and the defenders. Halfbacks play both offense and defense. Their primary objective is to receive the ball when it is “cleared” by teammates from the defensive zone, and pass it up to the forwards for scoring opportunities.

Defense (Fullbacks and Sweeper) - Line up between the midfielders and their team’s own goal. They form a row of three fullbacks with one deep sweeper playing behind them and are the last line of defense before the goalkeeper. Their primary responsibilities are to prevent opposing players from scoring goals and to clear the ball up to the midfielders or forwards.

Goalkeeper - Stands in front of the goal to block shots by opposing players. The goalie is the only player allowed to play the ball with his or her hands and can do so only when inside the 18-yard “penalty area” surrounding the goal.