Ball In and Out of Play – the two conditions of play in a soccer game; the ball is “In play” when 

Behind Closed Doors – Matches held when spectators are not allowed inside the stadium, often because one or more of the teams has been penalized, or for fear of violent fans

Bosman Ruling – a 1995 determination by the European Court of Justice allowing European Union players to transfer to different clubs after fulfilling the terms of her contract