While both sides are already confirmed as progressing from the group, the identity of the first-placed team - and therefore the one that goes straight into the round of 16 in March - is yet to be decided.
To overhaul the La Liga side, United will need to win by two clear goals or more at Reale Arena. Any other result would see us finish second, a fate which would require us to play two additional games in February - home and away in a play-off, against one of the sides dropping out of the Champions League after finishing third in their groups.