Inter Milan striker Romelu Lukaku was racially abused by Cagliari fans as he scored from the penalty spot to give his club a 2-1 victory in Serie A.
He is the latest black player to suffer abuse from Cagliari fans, prompting calls for action to be taken.
Lukaku, 26, stood and stared at fans behind the goal – where monkey chants had come from – after scoring.
“Cagliari have history for this,” said European football’s anti-discrimination body Fare.
The fans’ actions were condemned by Inter defender Milan Skriniar in a post-match interview. “There are things that must not be in football,” he said, according to La Gazzetta dello Sport.
However, when Inter boss Antonio Conte was asked about the chants, he said: “I really didn’t hear anything from the bench. However, it is true that in general in Italy more education is needed.”