The same source has suggested the Gialloblu have agreed to sign the Moroccan on a season-long loan with an option to buy.
With only minor details left to be sorted, it is expected that the transfer will be made official in the coming days.
It comes as a surprise that Monaco allowed Obbadi to leave after the player impressed last season, but this is enough to suggest the Principality club plan to bring a high-profile footballer to replace the experienced midfielder.
Obbadi moved to Stade Louis II from Troyes in January 2013 and immediately commanded a regular starting berth, making 48 league appearances and scoring 3 goals.
The 31-year-old, however, seems to have already played his final game for Monaco, but he is unlikely to be disappointed with a switch to Italian Serie A.