DVD includes1 v. 1 defense (defender facing attacker),the role of individual tactics in the playing system,1 v. 1 defense (attackers back to defender),1 v. 2 defense.Whether your formation includes a sweeper, a back three or a back four, 1 v. 1 play is the foundation for all forms of defending. That's why individual defensive training is the first step toward ball-oriented defense.