Reports in Italy suggest Napoli President Aurelio De Laurentiis tied up a deal to sign Groningen striker Tim Matavz.
La Gazzetta dello Sport understands that Napoli have agreed to pay €7m for the 22-year-old Slovenia international.
Matavz is among the top scorers in Holland this season with 12 goals to his name.
He will become Napoli's fourth signing of the January transfer window and perhaps the most high profile along with Espanyol centre-back Victor Ruiz.
Federico Fernandez, the Estudiantes defender, is due to join Napoli in June.