The forward says speculation linking him with a move away from Signal Iduna Park stems from a jocular comment by his agent, and that his focus is on Poland's Euro 2012 campaignRobert Lewandowski has moved to play down speculation linking him with a move away from Borussia Dortmund.
The striker is currently on international duty with Poland at Euro 2012 following his exploits in 2011-12 which saw him score 30 goals in all competitions and lift the Bundesliga title for a second season running.
His form has seen him linked with moves to Manchester United, and most recently Real Madrid, but the 23-year-old insists all transfer speculation derives from a joke that his agent made.
"Really? This is a new one for me," he told Kicker when asked of interest from the Blancos. "That's what my agent is doing. I'm not interested at the moment.
"Even something like my agent being asked whether he had been a guest of Jose Mourinho, since he had been in Warsaw.
"He made a joke and said: 'Of course! If Robert scores four goals during the Euros, he'll go to Mourinho.' Then this becomes a big deal.
"Like I said before the European Championship, my only focus is on the tournament. Now I only have one goal: winning the match against Czech Republic.
"This is perhaps the most important game in the history of Polish football. It's important to win, not just for ourselves, but for the whole country.
"We need to be very consistent defensively. And, above all, we must take our chances right away."
Poland and Czech Republic kick off their crunch Group A clash at 20:45CET on Saturday.