Hamsik insists Napoli will be title challenger
The Azzurri slipped up last season to miss out on Champions League action.
"There are a lot of teams who can take on Juve," the Slovakian stated on Sunday. "We are amongst them and we'll give it a go.
"But we have had the same Coach for four years and the same team for two - that's important. The squad knows each other well.