Christian Eriksen says Manchester United had 'a very bad day at the office' after they were thumped 6-3 rivals City.
Erik ten Hag's side were brushed aside in embarrassing fashion by their local rivals after Phil Foden and Erling Haaland both netted hat-tricks for the hosts.
Brazilian winger Antony and Anthony Martial restored some credibility for United but it wasn't enough - and Eriksen suggests that the club has 'a lot to change' before they see real progress.
Speaking to Sky Sports after the game, Eriksen said: 'It came very heavy.