That's a very tough group with nothing yet to be decided, I must admit that when the group stages were drawn, I didn't give United any chance to go through, but surprisingly they have been the best team in the group this far; I think PSG will win tonight and set up a cracking last game for all the teams; I expect to see lots of goals across the two games in group H tonight.
It'll depend on the players Koeman fields tonight, Barcelona are through already, so they could rest a couple of starters and try out fringe players and that could give the opposition a chance in this game.