Udinese are among clubs interested in Serbian starlet Filip Kostic.

The 19-year-old currently plies his trade with Radnicki 1923.

"Scouts of many clubs have been following him in recent months," agent Zarko Pavlovic told Kragujevac.

"There are no secrets - we officially know about interest from Anderlecht, Groningen, Udinese and Porto. But I believe many other clubs have his name written down.

"There are talks every day, but we will not sell him for less than our valuation. We want €2million (£1.7m) for him and anybody that wants him will have to pay that sum.

"If you ask me, he will probably leave. He is a really great talent.

"We could also use the money to strengthen our team in many positions."