The Croatian giants brought a few buses with them across Europe to try and frustrate the reigning Premier League champions.
And frustrate them they did as the scores were level heading into the half-time break.
Speaking after the game, Guardiola told BT Sport: "They defended very well one on one and were very aggressive.
"They had 10 players in the box, they didn't want to play.
"They were waiting for set pieces but we were patient.
"In the end we had enough chances through our ball possession to score goals."
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