But City fans made clear their support for the Italian, who is now eyeing a repeat of the 2011 FA Cup success.
Aguero said: "It was a very good game for us. We are happy with the win and reaching the next round of the FA Cup.
"We played well - from the start we gave it our all. We had spoken about having to give our all in the first 15 minutes.
"The truth is we played a great game and we hope we can continue to do so constantly."