Lech Poznan reportedly want £5million for the 21-year-old striker.
Speaking to the Lancashire Telegraph via his agent, Lewandowski said: “Everything will become clear soon, but the clubs have to talk.
“A lot depends on Lech as they have to agree a deal with one of the potential new clubs.
“Each of the clubs are attractive for me. I don’t think there is a big difference if I end up playing for either one of these clubs.
“I don’t know if it is a big fee. I don’t decide that. Of course there is still a chance that I could stay at Lech Poznan.
“Nothing is certain.”
