Newly promoted Norwich were beaten at home by Watford. The Hornets were 2 nil up and then 3 - 1 up before the home side made it 2 - 3 in injury time but it was too late to get another.
There are 10 more Championship fixtures today before Cardiff enter the arena tomorrow in front of the Sky cameras.
City face Sheff Utd in the last Championship game of the opening weekend on Sunday with a 12.35pm kick off at the CCS.