We already know the the outcome of the game, Real Sociedad will win struggling Manchester united at home and even away in England, there is no way Manchester united is going to survive this game. Their focus is divided already, Manchester united is fighting for relegation zone in the premier league, and they will do everything to remain in the league than risking it for Europa.
The Manchester united is having a lot of bad luck at the moment ranging from players in injury to poor performances, no good striker in the team no good defenders. the players are all low quantities and not fit for the squad. Real Sociedad is 10 position on the laliga table, with an impressive performance in their previous group stage games. i do not think Manchester united stand a chance to qualify.
We can't be that certain about the games. Yes United is having a terrible period, hell United is rumored to be considering firing Amorim already, dude came in at November and sucked so bad until now that after like just 3-4 months, they are already considering firing him because even the fired Erik Tan Hag was better than him, so it is clear that they are really bad.
But that doesn't mean that they are not still United, they are still good enough to give anyone their moneys worth, so we could see them get a win, I am not sure if that will happen or not but I know that its not going to be impossible for them to get a win here, at least one of the games. Home game would be my bet, they could win on the home field if they try hard enough.