Regarding Manchester United, literally had a low chance when they were playing without Ten Hag but as you see in the match they had against Barcelona and Xavi players, they performed pretty well and they are getting better with their new coach every day, right now they are one of the first hope for European league and I think if they continue playing like that they will win the title this season.
United does look very strong now. And you can say the team with an increase in performance when approaching the end of the season. If only United got his best performance at this time from the start of the season, they could be a strict competitor from Arsenal and Man City in a race for the EPL trophy.
After defeating Barcelona, in the last 16, of their opponents were Betis. They are not a weak team, but when United can overcome Barcelona, face a betis is not an obstacle for United to meet the requirements for the next phase.