I feel sad about Manchester United who seems to be this season they have no chance to get out of the CL group stage this season. They have suffered two defeats on two game occasions. This is very far from the expectations of most people, on a Manchester United paper, it is able to play more impressively and get an easy victory in Group A, the only one that is the toughest opponent is Bayern Munich, but the fact is Manchester United are also defeated by Galastasaray.
Furthermore, Manchester United will fight Copenhagen who is a representative of the Denmark League Super, if Manchester United can be held or defeated by Copenhagen it will not be easy for Manchester United in the future, Ten Hag and his team experience so severe decline for the beginning of the season.

I didn't expect Galatasaray to beat Manchester United at Old Trafford, Manchester United had a bit of a bad run of form recently but this was a Champions League game and it's never easy to beat Manchester United in front of 75,000 people at Old Trafford but Galatasaray did the hard thing with a great game and surprised everyone. If Manchester United get 6 points from the two games against Copenhang and 3 points against Galatasaray in Istanbul they will have 9 points and can get out of this group, but they will have to go through hell in front of Galatasaray's passionate fans in Istanbul.