The German coach has enthusiastically declared his admiration for his French counterpart ahead of Wednesday's Champions League clash at the Westfalenstadion, likening Arsenal's style of play to classical music.
"He is really something, I love him," the Daily Mail quotes the 46-year-old as saying. "He is Sir Arsene Wenger. He is 'Hello (making a handshake gesture)'. I'm this guy (making high-five motion).
"He likes having the ball, playing football, passes... it's like an orchestra. I like heavy metal more. I always want it loud. I love [Arsenal's philosophy] but I cannot coach it because I am a different guy. If you watch me during the game, I celebrate when we press the ball and it goes out.
"If, in the last four years, Barcelona were the first team I saw playing when I was four years of age — this serenity of football, they win 5-0, 6-0 — I would have played tennis. I don't like winning with 80% (of possession). Fighting football, not serenity football, that is what I like. What we call in German 'English' — rainy day, heavy pitch, 5-5, everybody is dirty in the face and goes home and cannot play for the next four weeks."
Arsenal, Dortmund and Napoli are all level on six points after three games in Group F.