Netball, represented by the USA Netball Association, is a ball sport played by two teams of seven players. Games are played on a rectangular court with raised goal rings at each end. Each team attempts to score goals by passing a ball down the court and shooting it through its goal ring. Players are assigned specific positions, which define their roles within the team and restrict their movement to certain areas of the court. Netball is a popular participant sport in countries of the Commonwealth of Nations.