Bayern Munich and Borussia Dortmund are in talks about a transfer of Mats Hummels.

In recent years, both Mario Götze and Robert Lewandowski have left Dortmund for Bayern.

Central defense has been an issue this season for Bayern due to injuries.

On Monday night the Dortmund CEO Hans-Joachim Watzke said that “if Hummels leaves it will be to join Bayern Munich” and Karl-Heinz Rummenigge, as Bayern were preparing to fly to Madrid for their Champions League semi-final against Atlético Madrid, said: “I can pretty much confirm what Mr Watzke said last night and that is that Mats is talking to Bayern.

“But these are talks between three parties and please understand that I cannot go into more detail at this moment. We have to respect that he is under contract at the moment [until 2017] and I don’t want to ruin the good relationship we have built up [with Dortmund] with some comments today.”