Fiorentina patron Andrea Dalla Valle has urged fans not to lose faith after a poor start to the season.
Fans turned on their players during defeat to Lazio on Saturday.
"The crowd is jeering and is right to do so, but I ask them to give us a helping hand so we can get out of this situation," said Della Valle.
"Nobody expected a performance like this. It is a difficult moment, but it will pass. Some players are behind in terms of fitness levels, but it is truly incredible to see the same mistakes as last season.
"Sinisa Mihajlovic talked to the lads for an hour. The team is there and I am convinced something good can eventually come out of such a terrible evening."