The Italian football federation (FIGC) have confirmed they are investigating possible transfer irregularities after Diego Milito and Thiago Motta moved from Genoa to Inter Milan.
The FIGC confirmed they will question the presidents of both clubs over the double transfer which took place at the end of the 2008-09 Serie A season.
The case centres around the involvement of Genoa owner and president Enrico Preziosi, who is banned from footballing activities for five years, but has claimed to have instigated the sale of the duo to Inter.
Milito played an integral part in Inter's treble-winning season last term, scoring 30 times as the Italian giants scooped the UEFA Champions League, Serie A and Coppa Italia titles.
A spokesperson for the Italian federation confirmed that their disciplinary committee have called Preziosi and Inter president Massimo Moratti up for questioning and revealed that more information will be forthcoming.
However, she refused to comment on reports suggesting the Nerazzurri could be stripped of one of their titles.
Preziosi was handed a five-year ban in May 2005 after he was found to be heavily involved in the club bribing Venezia to throw a match against Genoa.
The Grifone, who had just been promoted to Serie A for the first time in 10 years, were relegated to the third division.
The FIGC have known about a possible contravening of the ban for almost a year after Preziosi told local TV channel Telenord: "I saw Moratti at breakfast, we reached an agreement on the valuation of the two players and we shook hands.
"Between us there is a lot of sympathy and there could be other collaborations in the future."