Italy boss Cesare Prandelli has hailed Napoli's performances this season, likening their achievements to his old Fiorentina side.
Napoli moved into second on Sunday with a thrilling 4-3 win against Lazio.
They are now three points behind League leaders Milan with seven games remaining.
Speaking to Radio CrC, Prandelli said: "This is a very entertaining season, above all thanks to Napoli who've shown an extraordinary continuity.
"Walter Mazzarri has given Napoli a great organisation in their style of play and the fans are dreaming: this is the beauty of football.
"There are great players at Napoli whose qualities are exalted in a special way."
Asked if Napoli can win the Scudetto, he said: "I support Napoli's challenge for many reasons - for the capacity of the fans and the club's panning.
"I see the Fiorentina of recent years again. We also wanted to fight for these objectives."