Juventus coach Antonio Conte and Italy international Domenico Criscito have been questioned over match-fixing allegations.
Policed searched the room of Criscito at the national team's Euro 2012 training camp near Florence in the early hours on Monday.
The move is part of an investigation by the Italian authorities into the so-called Calcioscommesse sports betting scandal.
Criscito was one of 19 people targeted by police in a new blitz by the public prosecutor in Cremona, where the original Calciosccommesse scandal broke almost a year ago.
Ten current and ex-players are amongst those implicated and Lazio captain Stefano Mauri and former Genoa midfielder Omar Milanetto are among those to have been arrested.
A statement from the FIGC read: "As part of the investigation carried out by prosecutors of Cremona regarding match-fixing, prosecutor Guido Salvini has issued 19 procedures: 14 people arrested (including Mauri and Milanetto), 31 home searches and two people questioned.
"Police agents also arrived to Italy's training ground in Coverciano this morning to hand a notification of impeding investigation to defender Domenico Criscito, who is investigated for acts that would have taken place while he was a Genoa player."
In June last year, the Interior Ministry set up a special match-fixing task force in response to a number of high profile cases.
Former Atalanta captain and Italy midfielder Cristiano Doni was banned for three-and-a-half years in August for his part in the Calcioscommesse match-fixing scandal involving Serie B matches last season.
Atalanta, promoted from Serie B, were deducted six points in the top flight this season as a result.
Former Lazio and Italy striker Giuseppe Signori was banned for five years and 15 other players were banned for between one and five years for their part in the same scandal.