Lazio captain Stefano Mauri and several other top Serie A players were arrested on Monday as part of an investigation into the so-called Calcioscommesse sports betting scandal.
He was one of 19 people implicated in the affair as police swooped on a number of addresses up and down the country, according to the Ansa news agency.
They are accused of having received money to fix matches for betting syndicates, whose head is believed to be based in Singapore.
National team full-back Domenico Criscito's room was searched at Italy's Euro 2012 camp just outside Florence as part of the probe while Juventus coach Antonio Conte's home was also searched by police.
Of the 19 people involved in the dawn raids, 10 are either current or former players from the top four divisions in Italy.
As well as Mauri, 32, former Genoa and Fiorentina midfielder Omar Milanetto, 36 and now with Padova in Serie B, was arrested.