Manchester United will be traveling to Spain to face Sevilla in the return leg tomorrow, Manchester United played really well in the first of the game but lost out in the second half of the game, Sevilla didn't score any goal, the two goals were scored by Manchester United defenders Malecia and Harry Maguire, which now put Sevilla in more advantage of qualifying to the next round of the competition. Manchester United have a lot of injured players at the moment, even the key player that has been the heart of their defense is out injured, talking about the likes of Lanzadro Matinez, and in the attack Macus Rashford is out injured. But Manchester United will make it to the next stage because they have that fighting spirit, they did it against Barcelona and they can still do it against Sevilla.
If the players you mentioned cannot be played, then there is no guarantee that Manchester United will win. Because it is not correct to compare the composition of Manchester United's players when they played against Barcelona with the current composition of Manchester United's players, because some of the key players could not be played.
Therefore, it can be assumed that Sevilla at this moment is quite lucky, because of the poor results in La Liga but Sevilla still has a chance to advance to the next round in this Europa League. If Sevilla can take advantage of this opportunity then of course it will be a big result, because some of Manchester United's key players may not be able to play.