The Croatian central defender moved between two of Germany’s biggest clubs when he joined Borussia Dortmund from Munich in July 2013
However, it is believed the German giants are willing to allow him to go out on a free today and Dons boss Derek McInnes is keen to complete a deal to bring him to Pittodrie.
As well as playing for both Munich and Dortmund, the 18-year-old has also represented his country at youth level.
Ash Taylor recently joined fellow Dons centre back Russell Anderson on the treatment table and although the Dons have signed West Brom defender Donervorn Daniels on loan, Derek McInnes is keen to further strengthen his defence today.
Lukas Culjak could join the Dons from Dortmund today
Aberdeen FC looking to sign former Bayern Munich defender on free transfer
