It's hard to say Man United will last until the end in the second half, they will play defensively probably because the attack will be a little lacking.
Something that is not in Manchester United's favor they should at least be able to hold on until the end because it is important about 3 points for them.
Although I expect Arsenal to win because Sevilla statistically are very poor away from home in European competitions; they were winless in their last 14 games away from home in the European competitions that is why I expect Arsenal to win the match without any doubt.
The gunners have gone past last weekend's controversial defeat to beat Sevilla scoring in both halves of the game tonight, what a show of class and consistency by the London side. If it end this way arsenal would have secured their place in the round of sixteen next year where they face other teams that may make it through to the next round, haven said so I think the gunners are gonna be a formidable team as they keep progressing from one level to another game after game, Mikel arteta is doing quite a great job with these boys I have to give him the credit for arsenal's show of class and form this season.