Phil Foden scored his first Manchester City goal with Gabriel Jesus and Riyad Mahrez on target either side of half-time as the holders eased into the EFL Cup last 16 with a 3-0 victory at Oxford United.
City named a strong side for the third-round clash including captain Vincent Kompany and Nicolas Otamendi in defence, while John Stones operated in an unfamiliar role in front of the back line and there were starts for youngsters Foden and Brahim Diaz.
Brazil striker Jesus recorded his second of the season with a close-range header, and thereafter City's progression was not in doubt, with Foden brilliantly setting up Mahrez for a late second.
And teenager Foden opened his account for the club with an arrowed finish in added time to make a case for more regular selection under Pep Guardiola this season.
Jesus thought he had struck in the 19th minute but the offside flag cut short his celebrations, although the striker would not be denied by the officials when he opened the scoring.
After referee Roger East played a good advantage, Foden swung a superb crossfield pass out to Diaz, whose shot rebounded up for Jesus to stoop and head home from a few yards out.
Danilo, making his first appearance of the season, rifled a long-range drive narrowly wide of the angle in the 50th minute as City sought a second goal.
Foden missed a sitter from a Danilo cross but made amends with a brilliant pass that sent Mahrez clear on the break to score with a powerful strike with 12 minutes left.
And Foden ensured City's passage in the 92nd minute, rounding off a star performance in style with the Premier League champions rarely needing to get out of first gear to start their EFL Cup defence with a win.
What does it mean: City challenging on four fronts
City were not expected to be stretched against League One opposition and the match went mostly to plan, with debutant teenage goalkeeper Arijanet Muric mostly untested. Foden starred, Diaz was involved in the opening goal and Oleksandr Zinchenko was bright at left-back. Guardiola has plenty of young talent and the EFL Cup may be the ideal proving ground if City are to target a quadruple.
Foden meets expectations
An awful lot is demanded of Foden and it is easy to forget that although Guardiola has touted him for a senior England call-up, he is only 18. This was the sort of match a talent as prodigious as Foden should have dominated and the wonderful pass to fellow youngster Diaz that created the opening goal showed what he could do. Foden occasionally operated on the fringes of the contest, but another superb ball created the second goal for Mahrez and he got the goal he deserved at the end. His ability is not in doubt.
Nervy moments for Muric
Recalled from NAC Breda after Claudio Bravo's injury, this was a first City appearance for goalkeeper Muric - and it showed. He appeared unsettled when Oxford delivered long throws into his box and with the third-tier side unable to create chances he could not build any confidence by making saves. Pre-match talk of Muric being Ederson mk II may be premature.
1 - Phil Foden (18 years, 120 days) is the first player born since the turn of the millennium to score a competitive goal for Manchester City in any competition. Star. pic.twitter.com/8A3W8S07yD— OptaJoe (@OptaJoe) September 25, 2018
City host Brighton and Hove Albion in the Premier League on Saturday, while it is back to League One action for Oxford, who are away to AFC Wimbledon on the same day.
|My season starts now, says Koscielny|
|Cipriani ´at peace´ with latest England snub|
|Laporte: Deschamps must have personal reasons for France snub|
|Morata injury not too serious, claims Chelsea boss Sarri|
|Hansen to leave: All Blacks coach returning focus to World Cup defence|
|I want to fight the champion! - Joshua reiterates Wilder in April ambition|
|Gundogan glad to leave Christmas holidays behind|
|I know how it feels and it hurts - Gundogan on Sterling abuse|
|Celtic 1 Red Bull Salzburg 2: Scottish champions through despite defeat|
|Olympiacos 3 AC Milan 1: Rossoneri crash out of Europa League|
|Arsenal 1 Qarabag 0: Lacazette on target as Saka shines|
|Hansen to leave: All Blacks will take time to name replacement|
|Chelsea condemn alleged anti-Semitic chanting from fans|
|Hansen to leave: The best Opta facts from New Zealand coach´s tenure|
|Hansen to leave: Five contenders to be the next All Blacks coach|
|Hansen to leave: Highs and highs of his All Blacks reign|
|Hansen to leave All Blacks after World Cup|
|Rapid Vienna 1 Rangers 0: Late Ljubicic winner sends Gerrard´s men out|
|Beckham continues to miss Giants practice with quad injury|
|Vidi 2 Chelsea 2: Giroud spares Sarri´s side in lacklustre draw|
|Paris Saint-Germain and Marseille fixtures among latest Ligue 1 cancellations|
|Santos turn to ex-Argentina boss Sampaoli|
|Muller could miss Champions League last 16 after Tagliafico kick|
|Home hope Bekker out in front at Alfred Dunhill Championship|
|Van Bommel in touch with Robben over PSV reunion|
|Pinarello chief confident over Team Sky future|
|Stade make Ospreys tickets free in tribute to teenager|
|WRC great Loeb seals Hyundai switch|
|Madrid rumours better than sack talk, says Pochettino|
|Nadal to join Federer at 2019 Laver Cup|
|Prigoda smashes world record, Hosszu dethroned in Hangzhou|
|Former Juve CEO Marotta takes over at Inter|
|Glenn to stand down as FA boss next year|
|Muller apologises to Tagliafico for kick to the head|
|Pereira pleads for more Manchester United chances|
|Griffin hails ´phenomenal´ Lowry after Warriors demolition|
|I´ve played with Zidane and Henry, but Messi is something else – Pires|
|Dragons forward Jack de Belin charged with sexual assault|
|Durant: Raptors are the real deal|
|Cocu bids farewell to Fenerbahce after ´mutual agreement´ is made over October sacking|
|Australia unchanged for historic Perth Test|
|Champions League draw: The possible last-16 ties|
|Southee happy to be back on home soil|
|I wouldn´t swap Dembele for Neymar – Pires|
|Canelo ready to risk heavy weather against Fielding|
|Raptors upstage Warriors, Davis leads Pelicans with 44 points|
|India skipper Kohli excited by green Perth wicket|
|PSG? I haven´t decided my future yet – De Jong|
|Marcelo: Real Madrid don´t have attitude problem|
|India pair Ashwin, Rohit ruled out of second Test|
|Kovac: Ajax-Bayern draw was amazing|
|Sims re-signs with Dragons until 2022|
|Derrius Guice injury update: Redskins RB (knee) has rehab setback, undergoes 3 more procedures|
|Emery: Arsenal could sign defender in January|
|Phillies sign McCutchen to three-year deal|
|O´Neal thinks his Lakers teams could ´easily´ beat Warriors|
|A-League to add two clubs by 2020|
|Curry says he was ´obviously joking´ about moon landing comments|
|Now the beautiful part starts – Ronaldo ready for Champions League knockout stage|
|Bayern have a lot more potential – Lewandowski not satisfied despite top spot|
|Lyon star Fekir shares plaudits for Champions League progression|
|Mourinho not surprised by United´s defeat to Valencia|
|Motivation no issue for Benfica, claims Vitoria|
|Lewandowski finishes Champions League group stage as top scorer|
|Mourinho: We scored two goals and lost 2-1!|
|England have a diamond - Guardiola hails City´s Foden|
|Sterling´s carefree display invites us to love football more than others hate|
|Juventus achieved their objective, despite everything going wrong – Allegri|
|Never say never - Schmidt not ruling out All Blacks role|
|Bologna´s winning start ended in BCL|