People shouldn't underestimate FC Nordsjælland. Their passing game is great - they are basically following the Barca philosophy. Short passes all the time - also on goalkicks. They are trying to have a lot of possession so I wouldn't expect more than 55% possession to be honest.
Nordsjælland is a young and inexperienced team though. You should look for Okore, a 20 year old CB. He's a big talent and is going to be sold to a big club soon.

Anyway, they weren't really that close to scoring against Chelsea - they probably had 1 chance. It's going to surprise me if they score a goal against us, so if we manage to score two goals, it's game over for them. One goal is probably enough as well. They don't really have a plan B.