Klopp refused to answer a journalist in English during a Europa League press conference.
He told a reporter that "now we are here in Germany I won't answer in English."
The German was in his homeland on Thursday for the Reds clash with Augsburg where they came away with a 0-0 draw.
When the reporter pushed him for a soundbite — using a German reporter as his translator — the much-admired coach refused to play ball.
He replied in his native tongue: "Say hello to your colleagues for me.
"I see them quite often by the way, so it can't be that hard to ask me that on Friday."
When a German reporter asked him if he should translate that for the English reporter, Klopp simply quipped "I don't care."