Fiorentina director Daniele Pradè won't rule out selling Adem Ljajic.

Prade wants a show of commitment from the midfielder.

"We are working on Ljajic's renewal," director of sport Pradè told Sky Sport Italia.

"The main thing is that he wants to remain at Fiorentina and he has to prove it, otherwise the doors are open for everyone.

"We are a strong team and a strong club, so this forces the player to let us know what he wants to do."