2 teams of 9+GK playing as a GK.4.3.2. The pitch is divided in 4 channels (in white) and 3 zones (in black). The objective of the drill is to keep the defending team together during the defensive phase. To do so, the attackers don't have any conditions (they can be wherever they want, but offside rule applies), and the defenders must be within the 3 contiguous channels and within the 2 contiguous zones. The drill can be adjsuted to the desired formation.