Fiorentina have no idea of the thinking of Stevan Jovetic.
Chelsea are being linked with a €25 million bid for the striker this week.
"He (Jovetic) must tell us what his real intentions are," sports director Daniele Prade said to Sky Italia.
"We want to build our team around him. He has a contract until 2016 but he has to be the one to say what he wants.
"Either an offer that we cannot turn down arrives or nothing happens.
"There are talks about a club? Then they should make us aware of what it is.
"It's not a case of being ruthless with Jovetic. He is a great person and a top player.
"(Fiorentina coach Vincenzo) Montella wants to coach him and build the team around him."