Lewandowski credits Klopp for hot goal-scoring form in 2015

Bayern Munich forward Robert Lewandowski is, perhaps, the most red-hot striker in the football world at the moment.

It's not even close, really. The Polish international has scored at a tremendous rate for his club and country in 2015. But, Lewandowski said, much of this success comes down to the lessons he learned at his old club, under then-Borrusia Dortmund manager Jurgen Klopp, now at the helm of Liverpool.

"Borussia first expressed an interest after my first year in Poznan," Lewandowski told FourFourTwo, as quoted by ESPN. "When I left after the second season, I wanted to take the next step - but suddenly I was playing in a No. 10 role. I was quite mad because I wanted to play up front.

"It was only in the following year that I realised how much I had learned while playing in that position. I told myself: 'You have become a better player.' Then I realized why the coach had asked me to play as a No.10; he made me a more complete player."

It wasn't just the football itself that offered the Polish international a challenge; living in a different country, away from everything he knew, was also a difficult undertaking.

"It was such a big change for me, coming to Germany," Lewandowski said. "It was the first time I was so far away from home, 700 miles. The first few months were hard. I had been prepared for that. I knew this kind of thing could happen and that I had to hang in there and stay positive. But it's still not easy."

"... I knew I had to learn German. All I could say was danke (thank you) and a swear word. It just makes life easier if you can understand what people are saying. So I learned the language all on my own, and then life was a lot better."

Now, the challenge Lewandowski faces isn't just improving his German or his familiarity with the league, but improving the facets of his game that already make him a star. He has been challenged by current manager, Pep Guardiola, to step it up even further, despite scoring at an astonishing pace.

That challenge, Lewandowski said, is critical to succeeding in football.

"Whenever you think something is good, you've lost the chance to make it better," Lewandowski said. "Maybe it's true that I don't have a glaring weakness, but you always have to work on every aspect of your game, not just on the things you do less well.

"If you think your finishing is good and stop practicing it, then you're finished. There is no perfection in football. You must always systematically try to improve."