Juventus captain Giorgio Chiellini insists defeat to Napoli won't affect their clash with Champions League opponents Porto.

Chiellini is confident there'll be no hangover.

He said, “Saturday's match doesn't hurt us, we need balance and the two competitions must be distinguished.

“We are fighting for alle the objectives, now the Champions League begins and we arrive with enthusiasm.

“But we are aware of the difficulties we face tomorrow."

Chiellini said the Portuguese giants 'defend well' and expects a 'physical' battle.

“They're a team that defends well and concedes few goals," he said. “They have quality on the sides and up front.

“They are a physical side and must be taken seriously. We will have to avoid banging against the wall."