Marcello Lippi says Napoli can still win the Scudetto despite losing to Juventus on Saturday.
A late Simone Zaza deflected strike sealed the game for Juve.
“I don't think the overtake automatically means Juve have the Scudetto," Lippi told Rai Sport.
“I was asked this before the game too and I reply the same way – there are still 13 rounds to go, in other words 39 points, so it's impossible to consider that result decisive.
“Clearly it is a game that shifts the psychological balance of the race, but everything is still possible."