Deutsche Welle TV delivers an enthralling 15-minute delve into the methods and history of Chelsea's German boss Thomas Tuchel, dubbed a "difficult person, fantastic coach" by one former employer. Tuchel's playing career ended with an injury at age 25. He then studied economics and worked at a bar before returning to soccer as a youth coach. The mini-doc covers his common history with Jurgen Klopp -- both took a route from Mainz to Dortmund -- and details some of Tuchel's training methods. Clips of Tuchel from training, press conferences (him speaking in German, English and French) and a Ted Talk-like lecture, show various sides of Tuchel, including the analytical and angry. Tuchel, who guided Chelsea to last season's UEFA Champions League title with a squad including American Christian Pulisic, also coached Pulisic at Borussia Dortmund before he coached Neymar and Co., Paris SG.