MU - Barcelona. Barca played very pragmatic football. They scored just 1 goal
They got the match result but technically Barcelona did not score any goal as it was a Manchester United own goal 
Hope an away result can be got from Camp Nou in the reverse fixture, like it was done against PSG
Lol!
You can only hope for a favorable away result, but I'm sure you definitely won't get one, Barcelona most definitely won't be relying on a 1 goal away win to advance to the next round.