Borussia Dortmund general manager Hans-Joachim Watzke denies Robert Lewandowski is moving to Bayern Munich.

The Pole is also wanted by Manchester United.

"It's just a bubble of speculation," Watzke said. "There is absolutely zero substance in the reports, there's is not even a primary source - that really gets on my nerves.

"The fact is, Robert has a contract with us until 2014 and we want to extend that."