For Barcelona vs Manchester United - I think Barcelona have a good chance of qualifying for the last 16, but no one can really underestimate Manchester United. I hope Barcelona have a way of winning this match either home or away, obviously it would be great to be real.
Both have their each other's advantages, Barcelona has a solid squad while the Red Devils have experienced tacticians. The match will likely be a very interesting match, but it won't be easy for either of them. I have a feeling that Barcelona will win this match, head to head and their positions in their each leagues, on paper Barcelona are more likely to win