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striker says he appreciated playing for boss at . The Polish legend spent four years playing under the boss at Dortmund, before sealing a move to but opened up on a midnight chat with Klopp which helped him find his form. He recalled to ESPN: "I think that one situation changed my career. "It was the first season, maybe the beginning of my second season, at Dortmund. I wasn't in good form, I didn't score so many goals.

And I missed my father because I lost my father when I was 16 years old.



"In that moment I understood that mentality and what you have in your head is so important because I didn't change anything.