Cech refused to take Nordsjaelland lightly ahead of what is arguably the biggest game in the Danish champions' history.
He said: "We treat this game exactly as we did the recent games in the league and those games last season in the whole campaign, whether it's the final or not.
"This is the Champions League. We take every opponent seriously.
"We want to win, that's clear, but we've done our homework and want to impose our style of game on the match tomorrow. That would be ideal."
He added: "It's a huge game in the history of Nordsjaelland, so they'll be motivated and up for the task of their first Champions League home game.
"They will want to show they can play football and are rightly in the group stage.
"Any victory would be good for us. It's not going to be easy, but we can secure three points.
"We're the favourites in the group as reigning champions, but all we can do is try and play our game and get a result."