Truthfully both teams are terrible this season. If we had the Real Sociedad from the previous season then I would be 100% sure they would eliminate this Manchester United. 
But they are really bad now. They can't score goals easily and their defense is also average. I expect a really close matchup as a result.
At the end, I won't be surprised if Manchester United can't make it anyway. They are even worse this season crying for help.
Well, that's it. Both Man United and Real Sociedad are not at their best this season. Real Sociedad is also not having a good season at the moment in the league. And in fact they just lost badly to Barcelona with a score of 4-0. It's just that Real Sociedad can still be expected to be better this time because in Laliga Real Sociedad is still ranked 9th. This is different from Man United, which is currently even ranked 14th in the premier league.But they are really bad now. They can't score goals easily and their defense is also average. I expect a really close matchup as a result.
At the end, I won't be surprised if Manchester United can't make it anyway. They are even worse this season crying for help.
I probably won't bet on this match. Because I think the results will not be easy to predict. The inconsistency of these two teams will really make the outcome of the match difficult to predict. But if you look at how Man United is playing this season in the Europa League, Man United should still be expected to win. Because until now Man United has never lost in the European League this season.