The 23-year-old has attracted a host of European interest following an impressive two seasons in the Bundesliga, but he has revealed a desire to remain at Dortmund.
"The rumours about me and other teams are not of any interest to me. I have two years on my deal at Borussia Dortmund and I am still a player at this club," he told Przeglad Sportowy.
"We have a competitive match this coming weekend and that's all that matters to me. I am totally focused on the new season and not what could happen in the future."
The Pole scored 30 goals for the club last season.