Bernardo Silva is the first Manchester City player to score in consecutive appearances against Manchester United at Old Trafford since Sergio Aguero between 2011-2015 (three games)

Holders Manchester City will take a commanding lead into the second leg of their Carabao Cup semi-final after outclassing neighbours Manchester United at Old Trafford.

Marcus Rashford's late reply will give United hope they can still turn this tie around in the return on Wednesday, 29 January, but it should not deflect from City's overwhelming superiority for the vast majority of the game.

Pep Guardiola's side stunned the home fans with three first-half goals, and in truth they could have had many more before the break, such was the gulf between the two sides.

City, who left Sergio Aguero and Gabriel Jesus on the bench, started with a strikerless 4-4-2 system that saw Bernardo Silva and Kevin de Bruyne their furthest players forward.

It was Bernardo who broke the deadlock, with a superb strike from the edge of the box that arrowed into the top corner of the net.

Riyad Mahrez made it 2-0 when he ran on to Bernardo's pass and rounded David de Gea, with the home side hopelessly exposed.

By now, United were chasing shadows and it was soon 3-0, as a swift breakaway ended with De Bruyne twisting Phil Jones inside out before seeing his shot saved by De Gea but ricochet in off Andreas Pereira.

United's limp resistance and lack of threat saw them booed off by some supporters at the break but they at least showed some resolve when they emerged for the second half.

City seemed content with their advantage, and United at last began to enjoy time on the ball, although they did not force Claudio Bravo into any meaningful action before Rashford's goal.

That came when the visitors, for once, gave the ball away cheaply and Mason Greenwood fed the England striker to run through and score.

United never threatened to deny City a famous victory however, and Ole Gunnar Solskjaer's side are left with a huge task if they are to stop them reaching their third successive final, and their fourth in the past five years.

City's invention and improvisation shine through

Riyad Mahrez has started 19 games in all competitions for Manchester City in 2019-20 - in those games he has been directly involved in 15 goals (six goals and nine assists)

City were torn apart in the opening stages when these two sides met at the Etihad in the Premier League last month, but this time it was United who were left reeling early on.

Guardiola's line-up left many observers scratching their heads before kick-off but his system, a fluid 4-4-2 that saw De Bruyne, Bernardo, Mahrez and Raheem Sterling change position at will, worked like a dream.

In December, City had no answer United's raw speed but here it was the invention and improvisation of the visitors' attack that did the damage, time and time again.

City have made a habit of winning at Old Trafford in recent years but their sparkling first-half performance was impressive, even by their high standards.

Only 3,000 away fans were there to witness it in person, in a tiny pocket of the ground, because of a reduced ticket allocation after incidents in recent derby matches.

But for the supporters who got a ticket, this was a night they will never forget. They loudly revelled in United's misery and their own side's success before giving their players a standing ovation at the final whistle.

A reminder of United's shortcomings

Manchester United conceded three first-half goals in a game at Old Trafford for the first time since May 1997 against Middlesbrough - a game which featured Solskjaer

While City's fans celebrated pretty much throughout, United's supporters endured a very different evening with all of their side's shortcomings in evidence.

When United tried playing out from the back, they were not capable of passing through City, and repeatedly surrendered possession.

And while the home fans urged their side to press City, they were not able to get near them for much of the match.

It meant they were unable to lay a finger on the visitors until the hour mark, when they finally managed their first sustained spell of pressure.

Rashford's goal aside, there were not many positives for Solskjaer to take away from this encounter but at least his side did not crumble completely, which looked likely at one stage, and finished the game showing some degree of fight.

Solskjaer's side are, somehow, still alive in the tie but this game should be seen as a reminder of how urgently United need reinforcements this month, even if they are more expensive than the club's owners would like.

Man of the match - Bernardo Silva (Man City)

The Portuguese schemer was basically given a free role and left to use his own intelligence in the final third of the pitch, and he did so to devastating effect

'United can come back' - reaction

Manchester City boss Pep Guardiola on BBC Radio Five Live: "The last game against United [a 2-1 loss in December] we could not control when we lost the ball, and tonight we did it better.

"We lost the ball in a position which is so dangerous [for the United goal]. We cannot forget which team we play. Tonight we can be more than satisfied to come here to Old Trafford and win.

"It is not over. We have one more game and we'll see what happens.

"Of course Manchester United can come back. Last year here they lost to Paris St-Germain [in the Champions League] and qualified. They have the shirt which means history and pride."

Manchester United manager Ole Gunnar Solskjaer: "From their first goal, and especially the second, we struggled to get to grips with them. A good reaction second half, but first half until they scored it is was back and forth. We didn't cope with the setback well enough.

"We didn't deal with their system well enough, we know they can play that way. They played that way last season and beat Chelsea 5-0.

"First goal there is nothing we can do, second is sloppy and the third we just didn't recover.

"With Matic and his experience [coming on in the second half] he had more presence. It was more about wanting the ball and believing, passing the ball. Someone needed to take responsibility. We've shown before we have been down from a home tie and turned it around. PSG is the latest example and we have to believe that we can put on a performance.

"It was a decision late on who was fit, it was no excuse. We have the players we have. We put a team out believing we could get a result."

Odds against United comeback - stats

United suffered their first home defeat since losing 2-1 to Crystal Palace in August 2019 and conceded three times at Old Trafford for the first time since losing 3-0 to Spurs in August 2018.

City have won seven of their last 10 away matches against Manchester United (D1 L2) in all competitions, as many as in their previous 42 visits to Old Trafford.

The past 15 teams to win away from home in the first leg of a League Cup semi-final have all progressed to the final, with Spurs the last side to fail to do so, against Arsenal in 1986-87.

Bernardo Silva became the first Manchester City player since Sergio Aguero (three in a row between 2011 and 2015) to score in consecutive away games against United in all competitions.

City have scored 44 goals in the first half of matches this season in all competitions - eight more than any other Premier League side, and only five fewer than United have scored in total (49).

Only Raheem Sterling (20) has scored more goals among English players in all competitions than United's Rashford (17) this season.

This was United's first home League Cup defeat against a fellow Premier League side since January 2005 against Chelsea, having won 16 consecutive games of this type before this 3-1 defeat.

City are responsible for four of United's last 12 defeats at Old Trafford.

What's next?

Leicester host Aston Villa in the first leg of the second semi-final on Wednesday (20:00 GMT).

United and City return to Premier League action this weekend. United host Norwich on Saturday (15:00), while City travel to Aston Villa on Sunday (16:30).