An own goal and Marc Guehi saw City through for this 2-0 fourth round win.
Guardiola said afterwards, “After 2-0 (was better). We didn’t read the spaces where they were. Always the spaces we attack depends on where the defend and we didn’t read it.
“We have to spend a lot of time to make the process quicker and better. The only good news is we go through.
“Would be nice to say that mentally we’re exhausted but this is our job and we have to do what we have to do.
“We didn’t read the spaces, that’s why everything was flat and slow and it was not good.”
He added: “It has been tough but not just this two weeks, since November it’s been every three days and that’s a lot.
“I know what they want it but we didn’t read what we should do and that sometimes happens. I know how to defined my players.
“Maybe we didn’t transmit what we should do. Max Alleyne cannot drop them, Rayan on the left is better.
“It’s not the point, when they are on the left and tight, we have to move the ball quick to the opposite side and we didn’t do it. That’s why it was boring.”