Barcelona meets Man United, Barcelona is not doing well in UCL but is doing well in their domestic league (La liga) at least based on the position in the league, it's a different story for Man United (as they are still in transition at the moment) but the result of this match remains depending on how many players in both teams are still fit/injury free after the busy schedule of these few matches.

In history Man United have always struggled against Barcelona, but I think Man United know it has been fixed and are ready. Man United vs Barcelona is by far the biggest Europa league game of all time.