Milan Badelj is a free agent considering proposals from Milan, Napoli and Zenit St Petersburg.
The Croatia international saw his contract with Fiorentina run down and is available without a transfer fee.
There were several clubs mentioned in recent months, but La Nazione newspaper claim the list is whittled down to just three options.
They are Milan and Napoli in Serie A, although the Rossoneri would need to get rid of at least one from current crop Lucas Biglia, Manuel Locatelli and Riccardo Montolivo.
If Badelj were to go abroad, the most likely destination would be Zenit St Petersburg.
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