The agent of Sporting Lisbon striker Ricky van Wolfswinkel has revealed the interest of Newcastle United.

Louis Laros says Newcastle have asked after the young Dutchman.

He told the International Business Times UK: "I didn't receive a phone call to start negotiations; they are only watching him at the moment.

"Maybe I will get a phone call tomorrow from the club saying they are ready to start negotiations but until then, nothing is happening.

"But clubs like Liverpool, Newcastle, Manchester United and Arsenal they are watching every good young player in Europe, and these guys are one of those players who could be interesting for a lot of clubs.

"They are watching them but they are also watching a lot of other great young players. There has been nothing yet."