I don't know what the result will be, but as we are talking on the forum right now, I think the Manchester United-Barcelona match is being talked about all over the world. There was no interest in the European league as before, but the teams eliminated from UCL definitely made this place very exciting. Since Manchester United could not finish the group as the leader, they had to stay in these matchups. I think Barcelona is better and will pass the elimination.
It's normal, there are less entertaining games at UCL right now and it is normal for people to be excited about that game. United and Barcelona are both teams that used to be awesome, had a bad period, and trying to recover this year back to their good old years.
They are basically having the same issues and it should not be shocking that their fans want their teams to win not just because they like to win this time, that's true for all times but this time they want it as a sign of recovery to good times as well. One of the fanbases will be upset, one of them will lose, and that will not just be loss of a game but potential loss of hope for the recovery process as well.