Pep Guardiola lauded his Manchester City side's "perfect" performance after defeating a Napoli team he believes is one of the best he has ever faced.
After City bossed the opening half an hour - scoring twice, through Raheem Sterling and Gabriel Jesus - they came under siege from the Serie A leaders.
Ederson saved one penalty from Dries Mertens and saw Amadou Diawara dispatch another, but City were able to see out the three points.
Guardiola believes that such a win was only possibly because his team delivered a flawless display at the Etihad Stadium.
"It was an amazing game," he told BT Sport. "Both teams had the same idea, high pressing, a lot of passes, attack after that.
"[Napoli] are one of the best teams I've faced in my career. No doubt about that. Maybe the best.
"It was perfect. If we did not play good, we could not beat that team. It would be impossible. If we were not aggressive without the ball, if we were not clear without the ball, no chance.
"It is a team [against which] you cannot have the ball for 90 minutes. We wanted the ball, but they have the quality. It was so demanding.
"To have nine points after three games is so important for us to qualify. The group is so tough. Shakhtar Donetsk play so good - we saw it here and they are a really good team too."
City now need just a point at the San Paolo in a fortnight to progress, but Guardiola insists they will again go for the win.
He added: "The situation is that we go to the next one and try to win the next game at Napoli. We are close, but it's not done. We cannot relax."
|Murray mercilessly mocks USA president Trump|
|Inspirational Smith hits century to thwart England|
|Guardiola more ´logical´ for Man United than Mourinho – Cantona|
|England unconcerned over Anderson after scare|
|Shaky starts for Greece, Russia in World Cup qualifying|
|Messi has ´no doubt´ about Real Madrid´s Champions League chances|
|England on top as wickets fall in Brisbane|
|Maxwell scores 278 in Ashes reminder|
|Falcons RB Freeman ruled out with concussion|
|Klopp quashes Conte´s recovery complaints|
|Hoeness believes in Bayern´s ´new spirit´|
|Warriors pair Durant, Green out of Bulls clash|
|Panthers activate Olsen from IR ahead of Jets clash|
|Mourinho slams Mkhitaryan for disappearing during Manchester United games|
|Newcastle beaten by Gloucester in Premiership|
|Hart hails West Ham fight under Moyes|
|Ulster leave it late to deny Treviso second away victory|
|Dolphins QB Cutler out with concussion against Patriots|
|Conte calls for clarity from Chelsea on Courtois deal|
|West Ham 1 Leicester City 1: Kouyate gets Moyes up and running|
|Robinson tips Farrell for World Rugby Player of the Year|
|Manchester United midfielder Carrick undergoes heart procedure|
|Manchester City youngster Bytyqi retires with heart condition|
|England can thrive on hostile atmosphere - O´Loughlin|
|Salah could become the Premier League´s greatest African star - Lauren|
|Lauren reserves judgement on Man City´s invincible credentials|
|Goffin and Tsonga cancel each other out on opening day of Davis Cup final|
|Stafford admits ankle is ´not 100 percent´ after Lions´ loss to Vikings|
|Bayern boss Heynckes slams ´insanity´ of Champions League ticket prices|
|Messi hails Barcelona team-mates after European Golden Shoe triumph|
|Napoli´s Hamsik saves space for a Serie A title-winning tattoo|
|Jardim urges quick Monaco response to Champions League woe|
|You always have a chance - Wagner hopeful of Man City scalp|
|Chelsea´s tough title defence was to be expected - Klopp|
|Horne replaces Dunbar in Scotland XV|
|Neymar and Cavani bound by common goal at PSG|
|Simeone: Everything seems better when Atletico win|
|F1 Raceweek: Scores to be settled in Abu Dhabi|
|Injuries not to blame for Real Madrid LaLiga position - Zidane|
|Icardi could stay at Inter forever, says Spalletti|
|Former England star Owen finishes second on horse racing debut|
|Emery backs Mbappe to shine on Monaco return|
|Robben-less Heynckes handed timely Coman boost|
|Guardiola not complacent ahead of Huddersfield clash|
|Trump to ´quickly´ play golf with Woods and Johnson|
|Salah not Liverpool´s only threat, insists Conte|
|Klopp trusts Moreno ´100 per cent´ despite Sevilla shocker|
|No excuses for Conte despite Chelsea´s travel trouble|
|Salah has nothing to prove in Chelsea reunion, says Klopp|
|We´re on the Ball - Paceman Jake says England´s homework is paying off|
|Bale return could be imminent - Zidane|
|Megson´s interim role is no audition as he awaits permanent West Brom boss|
|Bosz has derby focus despite Dortmund criticism|
|Kaka predicts bright future for Milan´s Silva|
|Lyon not sorry for controversial pre-Ashes comments|
|Ashwin takes four as India skittle out Sri Lanka|
|Messi equals Ronaldo with fourth European Golden Shoe|
|Mourinho fears Fellaini exit amid Arsenal, PSG links|
|I don´t know what you want - Mourinho blasts Man United critics|
|Mourinho protecting Pogba and Ibrahimovic as they prepare for Brighton|
|Stoke to offer Crouch fresh deal|
|Record-breaker Holmes hits Fiji for six as Australia march into final|
|Del Piero expects Juventus and Dybala to rediscover top form|
|Melbourne City 1 Perth Glory 3: Ten-man hosts pay the penalty|
|Chawrasia´s challenge on track in Hong Kong|
|Herbert leads Australian Open with Day poised|
|Moyes wants greater ref protection for Carroll|
|Unsworth questions players´ commitment after Atalanta embarrassment|
|Pistorius prison sentence more than doubled|
|Who, what, when and where? – All you need to know about the 2018 World Cup draw|