Tactical analysis and sessions from borussia dortmund39s 4 2 3 1 the defending part of this book in full colour contains a full and extensive analysis of jurgen klopp39s borussia dortmund team this tactical blueprint is explained clearly with supporting diagrams notes and detailed descriptions this defending analysis has been used to produce 14 sessions 53 practices including functional practices opposedunopposed zone play transition games game situations and small sided games