FIGC president Carlo Tavecchio says Italy coach Antonio Conte has received death threats.
Conte is under pressure after Juventus midfielder Claudio Marchisio suffered an injury scare.
"I saw him shaken this morning," Tavecchio told Radio Rai. "After yesterday's controversy, he received death threats on the internet.
"I met with Conte for a long time and he is not calm. All these things have been said on social networks and he feels vilified for something that is not his fault. The FIGC stands by him.
"People are creating this huge castle of sand on top of a fortuitous accident. I've never seen such rage aimed at a Coach. I am stunned, because the interests of the national team should be taken into consideration. We are capable of damaging ourselves like this."