On that occasion, the Blues had an enormous amount of shots on goal but fell 3-1 to the reigning champions and Ivanovic, who scored in last night's 5-0 Champions League rout of Belgian club Genk, says that particular match was the catalyst for an upward rise in form.
"Bigger tests are to come but we are ready for them.
"We have grown up. Things are going well for us but we have to work hard to stay at this level.
"Things can always change and it is too early to look back at the results we've had so far this season. We will see where we are after the New Year."