Of course they have a chance to win the Europa League title on paper as well but they need to keep these two tournaments balanced. Meanwhile Manchester United can benefit from the situation and eliminate them. After Arsenal have been eliminated by Sporting, Manchester United's chance to win the Europa League title has increased more.
Sure, Man United has a big opportunity to win Europa League title because Arsenal has been eliminated in the previous round. I hope Man United will face Roma or Juventus in the final round. It will be an ideal final if the finalists are big teams. It will be interesting too if 2 big teams from different countries play in the final round.
Manchester United had poor records previously from Sevilla so they have to be careful because as underdog team Sevilla can playing unpredictable but first leg will be held at Old Trafford i think Manchester United must be able to get a winning result even if it is possible to win by 2 goals margin or more because it will be more easy for them in the second leg if Manchester United can win with big scores and if we see their performance while against Betis i think it shouldn't be a problem to beat Sevilla in the first leg