Manchester City matchwinner Kevin de Bruyne says victory over Atletico Madrid cannot be underestimated.
City hold a 1-0 lead in the Champions League quarterfinal tie.
De Bruyne said afterwards: "They (Atletico) played with almost five at the back and with five in midfield. I recommend anyone that says anything [about us], that they try playing against that on the training ground."
He continued: "We have to stay composed and don't try to get into their action.
"It is the way they play. One nil is one nil. I expect similar over there. If the game is tight they will have to attack a little bit more."