Ajax chief Marc Overmars is fighting to keep hold of Dusan Tadic.
The midfielder is interesting AC Milan.
“He is not for sale this season," Overmars told De Telegraaf.
“We started something beautiful three years ago and Dusan is far too important. He is the cement between the building blocks at Ajax."
The Rossonero are on the lookout for a new attacking midfielder after Hakan Calhanoglu's move to Inter Milan.
