Lautaro Martinez has been warned to control his anger by Inter assistant coach Cristian Stellini after his "excessive" reaction earned him a red card in the ill-tempered 1-1 draw with Cagliari.
The Argentina international scored the opener in Sunday's clash in San Siro but was later sent off for dissent as Inter were held to a third successive Serie A draw.
Martinez reacted angrily to a decision that went against him, earning a yellow card from referee Gianluca Manganiello and then a straight red swiftly followed for something he said.