Mihajlovic has been mentioned as a candidate for the vacant post.
"As of right now our club has a Coach and therefore does not need to look for another," said patron Della Valle on Sky Sport Italia.
"The tactician we have is staying where he is. For anything else, you'd have to ask my brother Andrea.
"We only want motivated people who love Fiorentina and want to achieve something important, not because they are after money or have ulterior motives.
"Anyone who does not love the Viola shirt, in any role, is free to leave."