Napoli condemned Chievo to relegation as they ran out 3-1 winners on Sunday evening in the Serie A match between the two sides.
Two goals from captain Kalidou Koulibaly either side of an Arkadiusz Milik strike sent Chievo down to Serie B and also put Juventus' title celebrations on hold for another week.
Carlo Ancelotti will now turn his attention to his side's Europa League quarter-final second leg against Arsenal on Thursday, as his team attempt to overturn a two-goal deficit and progress to the next round of the competition.
The Italian, in an interview with Sky Sports Italia, said that the forthcoming European game affected his players' performance against Chievo: "We had a lot of weight on us, so much so that in the race there was a lot of attention, a lot of application, but also a lot of fear.