Tuesday's 5-2 victory over CSKA Moscow means City have qualified from Group D with two games to spare, having endured humiliating first-round exits in each of the last two seasons.
And for Nasri, who has struggled at times to impose himself at the Etihad Stadium since his €30 million move from Arsenal in August 2011, the success is all the sweeter.
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“It’s a big achievement for the club because this is the first time we’ve gone beyond the group stages so we’re really happy, but there is still a long way to go.
“A club like Manchester City isn’t just going to be happy reaching the last 16; we want to get as far as we possibly can in this competition.
“As a team, we’ve progressed and even if the past two seasons have been tough and we’ve had difficult groups, if we work as a team, we have time to get better and better because the next round isn’t until February.
“Everyone played with lots of confidence this evening and we have a manager who tells us what is good and what is bad, so we’ve moved on as individuals and as a team.
“Personally, I’m very happy and I think that is showing in my game. I feel loved and I’m trying my best each time I go out so it’s all positive.”