Inter Milan coach Antonio Conte was disappointed with Cagliari fans after Sunday's win.
Romelu Lukaku converted a penalty to win the game, but a section of the Cagliari support racially abused the former Manchester United striker - only months after the incident with Juventus striker Moise Kean.
We need to improve a great deal in Italy and be more respectful to people who are working, in general," said Conte.
"When I was working abroad, the fans would cheer on their own team, not spend their entire time insulting the opponent."
