Fiorentina president Andrea Dalla Valle accepts Stevan Jovetic is likely to leave.
The striker is being linked with Arsenal and Manchester City.
Della Valle said: "Jovetic has to figure out what he wants for the future. If he does choose something else, then it is important we are compensated with adequate reinforcements.
"It's very unlikely he will stay, but in any case he behaved professionally and fairly this season. We are trying to build a team that can challenge for the Champions League. I asked Jo-Jo to help us get back into Europe and he did that."