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
Yes, that was an own goal by Luke Shaw. Although the match was played at Old Trafford but as usual, Barca dominated ball possession and were able to make several chances. This result is certainly burdensome for Manchester United for the second leg match.