Inter coach Luciano Spalletti has been fined €10,000 (A$16,000) for using "gravely offensive" language towards the referee in his side's 1-0 loss to Sassuolo.
The Nerazzurri suffered a surprise defeat at MAPEI Stadium on Monday (AEST), after which Spalletti confronted official Maurizio Mariani.
Lega Serie A has fined the 59-year-old for his remarks and warned him about his future behaviour.
Udinese, Napoli and Parma were fined €4,000, €2,500 and €2,000 respectively for letting off flares in their opening Serie A games of the season.
Torino boss Walter Mazzarri was given an official warning for entering the pitch to argue against a decision in his side's loss to Roma.