Napoli manager, Max Allegri, has warned his players to defend better when they face Arsenal in the Champions League on Tuesday.
The Serie A side will host the Gunners in their first league phase fixture.
Allegri has now pointed to their defensive lapses against Como and Inter Milan in recent league games.
He also hailed Arsenal as one of the best teams in Europe, who will give them problems.
Allegri said: “We are up against one of the best, Europe gives you different motivation and adrenaline.
“When we don’t have the ball, we must defend better as a team.
“Because so far against both Como and Inter, we left something to be desired on that front.”
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