"It's difficult to assess our performance today.
"You could only watch Manchester City control all of the game, and they were too good for us today.
"Tactically, they changed what they were doing and they altered things that we had worked during the week to try and restrain them on, and try to do the job that we did at the end of last season.
"But they altered things today and they made it very difficult for us, and we weren't able to quickly change and challenge the things that they did."
He added: "We just couldn't wrestle the ball from Manchester City.
"We couldn't get any of the ball and they just had too many players in the middle of the pitch. It was easy for them to get the ball wide when we tried to fill the middle of the pitch, because then the space became wider in the wide areas and they're very good at getting down the sides of you.
"They played with nearly five players on the front line and their two full-backs played inside, alongside Rodri, and then with two centre-halves. It was a game that we never really got any amount of the ball in and, I have to say, we were well beaten today."