AC Milan legend Zvonimir Boban is convinced the title pressure is getting to Napoli.
Boban was unimpressed by Napoli's 1-0 win over Palermo.
He stated: "Napoli feels pressure, it seems obvious. I think in the second half, the team has also paid for the conditions of the pitch, which was very heavy.
"In any case, the team has battled for everything, they gave very little to Palermo.
"(Lorenzo) Insigne tonight was very inconclusive."