West Ham have made an opening offer for Fiorentina defender Nikola Milenkovic.

Sky Italia says West Ham have launched a £15million bid for Milenkovic.

The Serb is out of contract in Tuscany next summer yet the Viola are determined to get a decent fee for his exit.

Fiorentina want £21.5m for Milenkovic, with 10 per cent of any fee going to old club Partizan Belgrade.

But there is an expectation that Fiorentina will sell this summer.