Now 35, Lewandowski has no current plans regarding retirement.
He said: "I don't think about what I already won or what I already did. I still have that feeling and that passion inside. I think I can still play soccer for three or four years, because physically I feel great.
'When I think about my professional career and the coaches I have met, it is incredible. I don't know how many players can say that they have had such important names. I feel lucky because I have learned a lot and of course when I watch soccer I see it in different ways.
"It will be difficult to live without being a soccer player after my career. But to be a coach ... I know it's a very difficult job. I'm not sure I'm going to be ready because you have to be one hundred percent focused on soccer.
"Now I tell you this, but in five or seven years I'm going to miss the dressing room, the smell and all this atmosphere, and I'll say, okay, maybe I can try. But for now I don't see myself as a coach."