Fiorentina fans should treat controversial former star Mohamed Salah with indifference rather than jeer him, head coach Paulo Sousa has suggested.
The Serie A leaders have launched a FIFA complaint against Chelsea over the Egypt international, who opted not to complete an 18-month loan stay in Florence.
"It is normal for a player to be jeered when he faces his old club, but often indifference is a far stronger message than jeers," Sousa said.
"Our fans should use their energy towards cheering us on. They will of course make their own decisions and express themselves as they see fit.
"Despite everything against Napoli, our fans supported us to the end and this makes me very proud to be in charge of this club."
Fiorentina have suffered 2-1 defeats in their last two matches – the loss at Napoli last weekend and a shock home Europa League setback against Lech Poznan.
"Napoli and Lech were two very different games," added Sousa. "In Europe we struggled on the transition from defence and this allows our opponents to score from set plays."
"A victory is worth double, seeing as we are ahead of Roma in the standings," added the former Basel boss. "We have a few issues at the moment, but we can fight it out with anyone.
"The Giallorossi have a squad that allows them to win the Scudetto and they invested for that goal over the summer."
