FC Copenhagen coach Ariel Jacobs has told his club's fans to "create a hell" for Steaua Bucharest in Thursday's crucial final Europa League Group E game.
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The Danish side head into the match third in the pool - a point behind second-placed Stuttgart and three adrift of Thursday's visitors.
FCK can go through as group winners if they are victorious by two goals and if Stuttgart fail to beat bottom club Molde, but Jacobs is concentrating on victory and not the margin.
"My message (to the fans) is that we must create a hell," he said. "First take them to hell, and then we can go to heaven afterwards.
"It will not be easy. They have a small advantage because a draw or even a defeat might be enough for them. But we know what it's about."
A domestic cup defeat to Brondby last Wednesday marked Copenhagen's only blemish since losing to Stuttgart in early November, with Jacobs' side having won five of their last six games.
"We have confidence from the last five matches, so we have to go for it," Jacobs added. "I have faith, because we have a certain experience with this.
"Up to now we have been good in the big games, so I hope it will be the same tomorrow."
Steaua approach the encounter seven points clear at the top of the Romanian league, and have been similarly impressive on the European stage with wins over tomorrow's opponents and Molde twice.
A 5-1 thrashing at home to Stuttgart last time out prevented early qualification, but - despite needing only a draw - Steaua boss Laurentiu Reghecampf has targeted a swift return to winning ways.
"We have looked carefully at Copenhagen," he told Digi Sport. "We will play to win there. We have worked on certain things and must be careful, because they have players who can send dangerous balls into the box.
"The match against Stuttgart was a blip. It would be nice to end the group with excellent qualification."