Borussia Dortmund block Robert Lewandowski to Bayern Munich

Borussia Dortmund have told Robert Lewandowski that he will not be sold to Bayern Munich this summer.

The Polish international's future has been the subject of much debate in recent weeks, with many, including his agent, claiming that he will follow Mario Gotze to the Allianz Arena.

However, Dortmund CEO Hans-Joachim Watzke has said that he will not sanction a move to their domestic rivals.

"Robert Lewandowski will definitely not make the switch to FC Bayern in 2013 - that's final," Watzke told Bild. "We have informed Robert and his agents now."

Lewandowski scored 24 goals in 31 league appearances this season.