According to Madiest journalist Nando Sanvito, Mazzarri’s expulsion occurred because Orsato interpreted Mazzarri’s passionate and emotional tone as an insult. He said: “Actually, Mazzarri spoke with emotion and venom earlier in the match, which Orsato interpreted as the tactician criticizing him. This happened again and there was a misunderstanding between the coach and the ref. Piero Ausilio will speak to the press instead of Mazzarri.”
Source: FcInternews.it