The picture above shows training drill involving two teams i.e. Team Red and Blue and a trainer.
The drill starts when the trainer plays the ball to the Blue player who plays it to his fellow defender to start the attack. The defender plays the ball to the Blue player in the middle who plays a through ball to the player on the left flank. The player on the flank runs to receive the ball, and after receiving the ball plays a long cross in the penalty box for the Blue player approaching the ball at the right far post. The player after receiving the cross plays it into the goal to finish the goal.
This drill helps in developing a chemistry between the players of the team and to make the most out of it in a real match. They practice playing long balls aswell.