Bayern Munich insiders insist they have a deal with Borussia Dortmund striker Robert Lewandowski.

Lewandowski is also a top summer target for Manchester United, but Bayern are convinced the Pole wants to join them.

A Bayern source told Der Spiegel: "We are with the player as good as agreed. But only now are beginning negotiations with BVB."

Asked about the developments, Lewandowski would only say: "I will not comment. I'm only a player and I have an ongoing contract."