Cagliari have signed Panagiotis Tachtsidis on loan from Torino.
The turned to Tachtsidis after being trumped by AC Milan for Fiorentina's Mati Fernandez.
“We are not complaining about the choice of the player, but we do consider it unfair that the intermediary was Pablo Cosentino," director of sport Stefano Capozucca told SportItalia.
Cosentino is technically banned from taking part in football deals after a match-fixing scandal.