Scotland midfielders Scott McTominay and Billy Gilmour made their debuts for Napoli in a comfortable Serie A victory over Cagliari.
The duo, signed from Manchester United and Brighton, entered the match together in the 74th minute with Napoli leading 3-0.
The game was briefly halted for seven minutes in the first half after fans threw objects, including fireworks, onto the pitch.
Antonio Conte’s team has now won three consecutive games, moving to the top of the early Serie A standings.
Giovanni di Lorenzo opened the scoring for Napoli with a deflected shot, and Khvicha Kvaratskhelia added a second goal from Romelu Lukaku’s assist.
Lukaku capitalized on a defensive mistake to score his second goal in as many games, with Alessandro Buongiorno heading in a late fourth goal.