A Manchester City fan is in a critical condition in hospital in Germany after being attacked following their Champions League tie against Schalke.
The club released a statement on Thursday confirming club staff had remained behind to assist the supporter's family.
It said: 'The club are working with Greater Manchester Police and German Police to ascertain more information.
'Club staff have remained in Germany to support the family of an injured City fan who is currently in a critical condition in hospital.
'Anyone with information that can help the Police should contact 101.'