Arsene Wenger has insisted there is no danger of Arsenal becoming complacent against Napoli as they look to tie up UEFA Champions League qualification.
The Gunners have travelled to Italy for Wednesday's match with a three-point lead at the top of Group F, knowing a draw would be good enough to secure first place.
Even defeat could see Arsenal progress, depending on the final scoreline and also Borussia Dortmund's result in Marseille, but Wenger has warned his players that an average performance against Rafa Benitez's side could end their campaign.
"I see it as another game we want to win, and that is the only way we can approach the game," Wenger said.
"Benitez has a very big experience, is a very intelligent manager, so I know he will prepare his team well. The only way we can counter that is to be at our best and put in a good performance as an average performance will not be good enough."
Wenger added: "For me the most important thing is to qualify. If we can finish top, it is even better."
The Arsenal boss expects his men not to be overawed by the hot reception which awaits them at the Stadio San Paolo, having already produced smash-and-grab raids at equally intimidating away venues earlier in this current Champions League campaign.
"That is part of the big games, we know how to deal with that because we have that everywhere in Europe," Wenger said.
"When you go from Fenerbahce to Dortmund, you are used to these kind of atmospheres."
Wenger does not want his team to dwell on the frustration of not being able to hold out for victory over Everton on Sunday, which would have extended their lead at the top of the Premier League to seven points.
Heading into a run of six matches in 22 days, Wenger is determined to take each challenge at a time.
"Tomorrow's game certainly (is decisive) as it is to be in the Champions League or not. The two other (Premier League) games not definitely as we are five points ahead and overall the (English) championship is a marathon," he said.
"We will be in the race, no matter what happens. We will show our strength hopefully, but tomorrow is a decider, that is for sure."
Wenger added: "The attitude of the players for me is absolutely focused, ambitious and that is what pleases me very much, because it shows the players want to do well until the end of the season."
Arsenal are likely to come up against Gonzalo Higuain, the Argentina forward whom Wenger tracked before he signed for Napoli from Real Madrid in a £34million summer move.
Wenger is not concerned with what might have been, as Arsenal went on to smash their transfer record to land German playmaker Mesut Ozil on transfer deadline day.
"There were a lot of statements that were not true about Higuain, but he has joined Benitez, is in good hands and shows he is a great striker," said Wenger.
"But we have (Olivier) Giroud who shows as well he is a great striker."
Wenger added: "Higuain is a player you have to keep quiet as he is of course very dangerous, so the more we can play outside the box the easier it will be for us to keep him quiet."
Watch Napoli v Arsenal on Sky Sports 2 HD tonight. Coverage begins from 6pm.
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