Italy’s financial police have launched raids on the offices of 41 football clubs, including almost all of those in the top flight.
Eighteen of the 20 sides in Serie A were targeted by officers of the Guardia di Finanza as part of a probe by public prosecutors in Naples.
The police seized documents relating to transfer contracts signed by the clubs, players and agents.
The authorities are looking for proof of alleged tax evasion and possible money laundering.
Some of the clubs under the spotlight are: Juventus, Milan, Napoli, Lazio, Roma, Udinese, Parma, Pescara, Palermo, Atalanta, Juve Stabia, Benevento, Genoa, Catania, Spezia, Piacenza, Livorno, Bari, Vicenza, Siena, Reggina, Chievo, Cesena, Grosseto, Gubbio, Lecce, Ternana, Sampdoria, Triestina, Fiorentina, Portogruaro, Brescia, Mantova, Torino and Albinoleffe.
The activities of a number of unnamed foreign outfits are also being assessed. The investigation is reportedly monitoring the work of 12 agents too.