Manchester United will need Ronaldo's contribution in the remaining games as well to be able to qualify from their group easier. He scored an important goal against Sheriff Tiraspol to increase his passion to show a good performance in the coming games. But he really needs his finishing skills back as soon as possible. He wasted some really nice opportunities in that game and he was able to score thanks to a penalty. This is enough for people to mock Ronaldo about his scoring mostly by penalties. He is a legend anyway but I hope he continues to score different kind of goals more often.
Man utd are not really relying on Ronaldo just like they were last season, it's different now, he's not even on the starting lignup of some matches, and they did fine in some of them, in the Europa League they just have to be decent, they don't need to be good against teams like Sheriff and Omonia, second place would be enough for them, it would be easier if Sociedad beat Sheriff though.