Chievo Verona and Atalanta of the Serie A are among 18 clubs named on suspicion of match-fixing, the Italian football federation FIGC said on Tuesday.
Twenty-six players and officials, including former Italy player Giuseppe Signori and Atalanta captain Cristiano Doni, have also been mentioned in a report by FIGC prosecutor Stefano Palazzi.
The FIGC probe is related to a criminal investigation into match-fixing/betting which at first centred on the lower leagues but now concerns 60 games in the top three divisions.
Sixteen people, including Signori, who protests in innocence, were arrested two months ago. They are suspected to have formed an organised system featuring former and current players, sports betting operators and others which manipulated games to rake in large sums from betting on the games.
The case will be dealt with by the FIGC disciplinary commission. A date is yet to be set.
Chievo will reportedly escape with a fine because they are said not have been involved directly in fixing schemes. But Atalanta could face demotion and Doni a three-year ban, according to reports.