High Line

A defensive setup where the back four or five push far up the pitch, well clear of their own penalty area, to compress the space the opposition has to play in. It's the structural cousin of the offside trap — a high line only works if the defenders behind it are fast enough, and disciplined enough, to recover if a ball gets played over the top. Teams play a high line to win the ball back closer to the opponent's goal and to support pressing higher up the pitch — it's very hard to gegenpress effectively if your defense is sitting forty yards behind your forwards. The trade-off is obvious the moment a quick striker gets in behind: a high line without genuine pace at the back turns into a highlight reel for the other team. The Guardian's tactics coverage has tracked this shift toward higher defensive lines across Europe for years.