Arsenal, Barcelona and Manchester United are hovering, but Fiorentina still want to keep hold of Juan Cuadrado rather than cashing in.
The Colombian international was Fiorentina's outstanding player for much of last season and enjoyed a superb World Cup campaign.
Some of Europe's top clubs have been gathering for Cuadrado and Fiorentina have been gearing up for an assault this summer.
The Viola shared ownership of Cuadrado with fellow Serie A side Udinese, but Fiorentina bought out the Zebrette's share during the World Cup.
It was widely believed that the purchase was a business decision as the Tuscans knew they could sell their prized asset on for a sizeable profit.
But Fiorentina owner Andrea Della Valle has made it clear that he will do everything in his power to prevent the sale of Cuadrado.
"Cuadrado? At times it seems like Mission Impossible to me," Della Valle said to a journalist in Rome.
If any of Cuadrado's suitors meet his valuation of nearly £30 million it will be a massive statement for Fiorentina to refuse the offer.
Much will depend on the player's intentions and Fiorentina's best hope of him staying put may lie with Cuadrado's mother, who is a major factor in his career and seems to favour staying put.
Can smaller clubs ever resist big bids for star players?