Linked with several top European clubs for the duration of the off-season, the 24-year-old hitman's foreseeable future remains with the Borussians.

While the Poland international insists he is still committed to the Bundesliga champions, he reckons it would be foolish not to keep his options open at a later stage.

"I have two years left on my contract, and this is a long time," Lewandowski told Bild.

"I do not need to make a decision today. Not if I am to stay on, not if I am to leave. There is no decision time-limit for me.

"I do not know what will happen at the end of this season. I do not rule anything out. I think ruling out something would not be professional behaviour.

"But my main focus at this point in time is my progress and the progress of Borussia Dortmund."

He added: "If there is an enquiry (from Bayern Munich) it is always something of interest for me. You simply have to look into it. It is such a big club in Bundesliga."