We came to wonder about quite possibly the most talented among young footballers in world football and left with the memories of another exciting talent.
Erling Haaland dazzled, yet it was Phil Foden who, at deadlock, scored to give Manchester City a valuable, slim advantage in this shockingly tense and tight Champions League quarter-final.
Borussia Dortmund will get back to Germany with a feeling of complaint reflecting on when another energizing youthful tyro, Jude Bellingham, was wrongly pulled up in the first half by Ovidiu Hategan, the officiating referee when he ought to have been permitted to score.
So what do we think about the tie?
It could go both ways, even though City will head out to next week’s second leg as top picks to get to the semi-finals for just the second time and the first under Guardiola, in the wake of leaving in the last eight for the last three season.
However, it is a long way from guaranteed.
Who do you think will advance between City and Dortmund?