Klopp is currently Red Bull's head of global football after leaving Liverpool at the end of last season.
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Kahn told Aktuelle Sportstudio: "At some point you have to accept that for him it is an exciting task.
"I don't know if he will continue like this for a long time because, as I see it, he is the kind of coach on the pitch, pure adrenaline.
"Let's see if he is satisfied there..."