The unluckiest team of the round is Copenhagen of course. They have a very tough draw against Manchester City and they will probably get destroyed easily as well. I respect their challenge in the group stage a lot. Just as Galatasaray were Copenhagen were also very ambitious to get points. But it looks like this is the end of the road for Copenhagen. 
I would have been happier to see Galatasaray in Copenhagen's place. I mean the draw would have still been very tough but at least they could have made much more money before being eliminated by the Manchester club. But anyways, the top title favourite Manchester City should have no problem on finishing off Copenhagen.
The Copenhagen team is not weak at all. They performed well against Bayern Munich and managed to draw the match goalless. They showed great dominance in the home match against Manchester United. Copenhagen team won 4-3. Copenhagen performed well in the last match against Galatasaray as well.I would have been happier to see Galatasaray in Copenhagen's place. I mean the draw would have still been very tough but at least they could have made much more money before being eliminated by the Manchester club. But anyways, the top title favourite Manchester City should have no problem on finishing off Copenhagen.
Copenhagen will face mighty Manchester City in the knockout round. The first leg match is a home match in Copenhagen. If they play well in this match, Copenhagen have a slim chance of advancing to the next round. But the Manchester City team is very strong. Manchester City are unlikely to lose against a smaller team like Copenhagen.
I was hoping that they would get one of the weaker opponents in the knockout round of the Champions League, but Manchester City is 98% their final destination in this tournament.
Copenhagen's odds to lose are ABC against Manchester City. But since this is a goal ball game, nothing can be said for sure.
Copenhagen's performance in the group stage was good. And they have proved that this team is in no way to be underestimated. If Manchester City can continue their great performance this season as well as last season then I would say City will win against Copenhagen. However, Manchester City's performance has also been somewhat erratic and weak this season. However, De Bruyne has been included in the squad after a long injury layoff. But we are still not sure if he can play well. So it's going to be tough for City to win against Copenhagen.