~snip~
Eriksen is not too important for Sevilla but Casemiro is. He came to Old Trafford and fixed many holes in their midfield and provided good defensive support for their defenders as well as shown that he can contribute good things for their attacking system from goals to passes to change their mode from defensive to attacking.
A return of Casemiro will be not a favorite news for Sevilla. In addition, Casemiro had many years in La Liga so he understood well enough about Sevilla.
I'm not going to classify them whether they are too important or not but what is clear is that with these 2 players for Manchester United's midfield, now Ten Hag has more options of course.
Their scheme without the presence of several central players clearly did not go very well so that in several matches Bruno was positioned deeper than usual. and while Casemiro and Eriksen are available now apart from them being able to create several new schemes, Bruno can also be positioned in an ideal position for them and there is no need to be disoriented for defensive and attacking midfielders because Casemiro can close that gap.
Eriksen is one of the important players for United, that's why Ten Hag signed him. plus, Eriksen is a perfect duet with Casemiro. unfortunately, he got injured. even though Eriksen has been declared recovered from his injury, he will not necessarily become the main starter again. at least, he will only be a substitute player. yes, to readjust. this duet of players, really really really really Ten Hag rely on as a pivot. then, the absence of Casemiro, who was scored a red card, had to make Ten Hag rack his brains, which in the end he rotated Bruno, who was paired with Tctominay. This rotation can be considered quite successful, because Bruno was able to adapt well.
Talking about the Seville game later. To be honest, I don't see any problem with United. it's just that, one of the important players they have suffered an injury. yes, so far there has been no good news regarding Rashford. if he is absent, it will obviously be a loss for United. However, luckily Martial recovered from his injury. yes, although not as sharp as Rashford. however, his presence will be very necessary if Rashford has to miss the first leg. so, I'm still optimistic that United can overcome Sevilla when this match arrives.