Kevin De Bruyne felt Man City showed Barcelona their true colours after claiming a famous win over the European giants on Tuesday night.
Just a fortnight after being thrashed 4-0 at the Nou Camp, City turned the tables on Barca by coming from behind to beat the Catalan giants 3-1 at the Etihad Stadium.
De Bruyne, who scored with a sublime free-kick between two Ilkay Gundogan strikes, said: "I think we tried to play the same way we did in Nou Camp, but there we made some mistakes.
"Obviously if you make mistakes you lose 4-0.
"Here we made fewer mistakes and won 3-1. Barca are a very good team but I think we did really well and showed what we have got.
"The first half hour was a bit nervous but after that we found the key to put them under pressure.
"I think from the moment we scored (to make it) 1-1 we did really well. They didn't create a lot of chances any more.
"I don't think they knew how to break us in the second half and we could have scored more goals. Obviously it is a really well-deserved victory."
- Watch all this week's Champions League highlights, including Man City's historic win over Barcelona, on ITV tonight at 10.45pm
Pep Guardiola hailed a historic victory after Man City came from behind to stun Barcelona on a memorable Champions League night in England.
Ilkay Gundogan struck twice either side of a sublime Kevin De Bruyne free-kick to earn City a 3-1 win over the Spanish champions just two weeks after being thrashed 4-0 by the same opponents.
It was City's first success against the five-times European champions in six attempts over the past three years and confirmed their arrival at the elite level arguably more emphatically than last season's run to the semi-finals.
For Guardiola it was an impressive victory against the club he led to two Champions League triumphs.
Guardiola said: "This club was for many years out of Europe, while these kind of clubs like Barcelona, Real Madrid, Bayern Munich were playing every year.
"Maybe today is a good step. Now we realise, 'Wow, we won against the best team, so we are able to do that'.
"For the future generations, for new players coming in the future, they are going to realise, 'These guys were able to beat the best team, and we have to do it again'."
- Watch all this week's Champions League highlights, including Man City's win over Barcelona, on ITV tonight at 10.45pm
- City 3-1 Barca: Three things we learned
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UEFA has opened disciplinary proceedings against FC Copenhagen after the Danish club's fans set off fireworks during their 1-0 Champions League defeat at Leicester City.
European football's governing body has been cracking down on the use of fireworks, flares and smoke bombs by supporters, with Celtic, Liverpool and Manchester City among the clubs recently fined or warned.
A statement posted on UEFA's official website said FC Copenhagen had been charged for "the setting off of fireworks - article 16 (2) of the UEFA disciplinary regulations" on Tuesday night. UEFA will hear the case on November 17th.
Kiev's Olympic Stadium will host the 2018 Champions League final, the Ukrainian football federation has announced.
The stadium was the venue for the Euro 2012 final where Spain beat Italy 4-0.
UEFA's executive committee met on Thursday morning to discuss the matter, but a spokesman for European football's governing body could not confirm if the Ukrainian federation's announcement was correct.
It would be the first time Ukraine has hosted a European Cup or Champions League final in the competition's history.
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Juan Mata admits Manchester United go into their rearranged final Barclays Premier League game with a bad taste in their mouths after missing out on a top four spot.
United needed neighbours City to lose their last game at Swansea on Sunday to have any hope of claiming a spot in the Champions League.
But City drew 1-1 at the Liberty Stadium meaning that, barring a improbable 19-0 win over Bournemouth at Old Trafford on Tuesday, United will have to make do with a place in the Europa League and Mata says the Red Devils didn't show enough consistency to warrant qualification for the UEFA Champions League.
They could still climb above Southampton from sixth to fifth but the players' attention may already been turning to Saturday's FA Cup final against Crystal Palace.
Writing on his blog on the club website, Mata highlighted injuries faced by the squad as one of the reasons for the lack of success this season.
We will have to close the Premier League season on Tuesday. It's going to be a bittersweet farewell to Old Trafford, now that we know we won't be playing the Champions League next season.
It leaves us with a bad taste because, even if we enjoyed good moments together throughout the season, we weren't consistent enough to qualify for the top European competition.
It's true that we found many difficulties along the way, especially if we talk about injuries (up to 15 players in several weeks, as far as I remember), but Manchester United must be ambitious and always fight for everything.