Yea, I also think same with you. Even before Manchester United was able to beat Barcelona and Real Betis, they were able to beat Real Sociedad.
And another great addition or boost or confidence to the Manchester United team is that they have Casemiro who is very much match fit in the team. Casemiro has missed one or two English matches because of 4 matches ban. He will be great in the Europa because he is reserving his strength.
Also by then Rashford will also be fit to continue his goal scoring streak.
after barcelona was knocked out of the european league, the biggest candidate to win the european league was man utd, especially with the best squad they had, man utd's winning percentage increased sharply
I'm not underestimating Sevilla, but when compared to Sevilla's performance in the local league, the chances of Sevilla winning against Man Utd are very small. In the first leg, I'm sure Man Utd will win big