Diagonal short short longs is a passing warm-up sequence to get players to work on short and long passes before a training or a match.
Create a large square with a line of players at each corner. Two of the lines need balls to start with.
The first player in line comes out in front to recieve a short pass from the second player in line. The first player plays back a wall pass to the second player who then plays a long ball to the other side.
The player who just passed long becomes the next wall passer where as the previous wall passer goes to the opposite side.
This exercise can work great in conjunction with a dynamic warm-up because the players will already be in lines. Coaches can have players perform different dynamic movements when they are running to the opposite side.