Udinese were the next to try and halt Luciano Spalletti’s side and they made it hard, but Victor Osimhen’s goal sealed the title on Thursday.
Napoli needed just a point to secure a third Scudetto, but trailed at the break to Sandi Lovric’s goal – a fine, curling strike which nestled in the top corner after he was allowed space in the visitors’ box.
An Osimhen header which looped narrowly wide was the closest Napoli came to scoring in a disjointed first half.