Jurgen Klopp's Borussia Dortmund was a very successful team that emphasized high-tempo pressing, while also preventing opponents' penetrations, and was ready to transition from attack to defense during the offensive phase. Jurgen Klopp led Borussia to two German championships, one cup, and a Champions League final in 2013. Borussia used a mixed defensive approach. Players either applied aggressive pressing high up the field or waited for the opponent in the middle third. Klopp did not hesitate to use both defensive methods during a match, so there were periods when his players waited for the opponent in the middle third and intervals when they applied intense pressing. When Borussia's players waited for the opponent, the team maintained its cohesion while immediate pressure was applied to players receiving between the lines. Additionally, the midfielders aimed to block penetrating passes from defenders to attackers. This tactic favored counterattacks and led to the creation of many opportunities. During negative transitions, the team attempted to regain possession as quickly and as high up the field as possible. Athanasios Terzis provides a complete and extensive analysis of Borussia Dortmund under Jurgen Klopp's guidance, which includes diagrams and detailed explanations. The analysis was used to create 14 complete training units (53 exercises) that contain functional exercises, transition games, zonal games with or without opponents, game situations, and small-sided games.