In fact, to predict whether this match will have many or few goals, I think it's still difficult to predict. Therefore, at least we still need the matches before this match is played to be able to determine which betting option we will choose.
We still don't know exactly how much the odds, when look at stake, Barcelona have 1.75 while MU have 4.30 and the chance of draw is 4.30. Maybe this still temporary result until next month begins. But, we know in home, Barcelona is a club which is not easy to beat, MU performance is far away from expected, especially Antony which have a gap different like he played on Ajax
We still have time to see how they develop before this match actually takes place, and from that time there may be changes in predictions based on their recent performance. Both teams have the same chance of winning, moreover, everything looks fine now with their performances in their respective leagues. The odds that are given for the time being can be an illustration of how their chances will be in the match later, but that can still change with the increase or decrease of these two teams before the match is held.