Sunday is derby day - but not as we know it.
While Liverpool versus Everton has always been the historic derby clash on Merseyside, Liverpool versus Manchester United is the intense, passionate, occasionally toxic North west version.
Just 35 miles separate the cities - and the rivalry is fervent.
The city rivalry stems from the industrial revolution, when Manchester was the biggest textile producer in the world - cottonpolis - and Liverpool was the world's busiest port, the second city of the Empire.
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The football rivalry stems from the success of Liverpool and United, 19 league titles to 20, six European Cups to three, 131 major trophies between them.
And the two fierce rivals collide on Sunday afternoon.
Ahead of the showdown we asked the Liverpool reporter from the ECHO, Paul Gorst, and the United reporter from the MEN, Samuel Luckhurst, to analyse - respectfully - one of football's most enduring rivalries.
Paul, Is the United v Liverpool rivalry even more intense than the Mersyside derby?
I wouldn't say so, no. I think the thing with Merseyside derbies is if your team loses, you will speak to dozens of friends, family members and colleagues the following week who support the other team, whereas if you lose a Manchester United v Liverpool fixture, supporters can switch off and forget about football for a few days. The desire to win remains the same, at least.
And Samuel, is the United v Liverpool rivalry even more intense than the Manchester derby?
Yes, although the Manchester derbies have taken on more significance in the last 13 years. The enmity between the United and Liverpool supporters is more toxic and the clubs' success automatically means they look to each other as rivals.
Last season's corresponding fixtures were played behind closed doors. How will the presence of a 75,000 full house impact the fixture this time?
Paul: I think it will have a big impact to be honest. Liverpool hardly ever give a true account of themselves at Old Trafford under Jurgen Klopp and May's 4-2 win behind-closed-doors was just their first victory under German at the home of their great rivals. They have often been the stronger of the two teams during that time too, so I think the return of supporters will be huge for United this weekend. Liverpool know all about the importance of the returning of fans themselves given the lost six at home last term but are without a loss in front of their fans since April 2017.
Samuel: The atmosphere will be the polar opposite. Anfield was probably the eeriest ground to visit last season. There is always a buzz around it hours before kick-off, with The Albert pub across the road and music playing on the forecourt. It felt like a demilitarised zone in January.
You only have to look at Maguire's performance at Leicester to appreciate the significance of a crowd. He had already played at his former club three times with United but a crowd was never present. With tens of thousands of vindictive fans back in their seats and on his back, he was culpable for all four goals United conceded.
Despite the vitriol between United and Leeds fans, the atmosphere was a throwback, partly because the teams had not played each other in the top flight with supporters in attendance for close to 17 years. Liverpool are also bound to rouse United matchgoers, particularly given recent form.
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Paul, which individual poses the biggest threat to Liverpool's chances of success on Sunday?
I think Bruno Fernandes is capable of a magic moment, isn't he? United often look clueless and without a real shape during games and the tactical information that is apparently being passed on by Ole Gunnar Solskjaer seems to fall on deaf ears at times within the team itself. So often they rely on a piece of individual brilliance to drag them out of a hole and they have plenty who can supply it, but Fernandes is the main threat for Liverpool on Sunday - and I include Cristiano Ronaldo in that.
And Samuel, which individual poses the biggest threat to United's chances of success on Sunday?
It has to be Mohamed Salah. His form is exceptional and he is the best player in the league at the moment. United used to contain him with relative ease until that clincher at The Kop gave Scousers confidence to crow 'We're gonna win the league'. He scored a few at Old Trafford last season across the league and cup games and United cannot keep a clean sheet at the moment.
Best memory from a United v Liverpool fixture, Paul?
At Old Trafford, winning 3-0 in the spring of 2014 still raises a smile. Liverpool absolutely dominated that day with Daniel Sturridge and Luis Suarez running riot. Knocking United out of the Europa League on St Patrick's Day 2016 also had many Guinnesses raised to it, I am sure.
The 1996 FA Cup final was a drab game with a phenomenal finale - and a great story with Eric Cantona securing the double 16 months after the kung fu kick. It was at the old Wembley, a derelict dump of a stadium, but it had charm and Cup finals were more meaningful there. Cup final day is no longer England's equivalent of Super Bowl Sunday and that is partly down to the soulless shopping mall of a stadium the finals are now staged in.
From a professional perspective, witnessing Steven Gerrard's expulsion after 38 seconds in the old rickety Anfield press box was pure drama. Those 38 seconds encapsulate why no sport can compare to football: the crowd cheered his entrance, then when he sent Mata flying, then targeted Herrera for flying in on him, and then sighed when he saw red.
That match, with Gerrard's red, Mata's goal, a saved penalty, and Liverpudlians holding back Mario Balotelli, was probably the most enthralling between United and Liverpool in recent years. And it was when both teams were barely Champions League standard. It is a fixture that regularly disappoints
How do you see Sunday's match playing out, Paul?
Liverpool should go there with no fear and the belief that they are the stronger, more cohesive and more in-form team. As we've seen a lot though, Liverpool under Jurgen Klopp tend to play the occasion rather than the team in front of them when they travel to Old Trafford. I think it'll be tense and even though United have struggled at home this term against the likes of Aston Villa and Everton, I think they will be much improved. Draw.
And how do you see Sunday's match playing out, Samuel?
United’s latest escapologist act against Atalanta was more structured and coherent. Their attacking play was productive in both halves and, if they could defend, they might have won the game comfortably.
Their inability to defend basic attacks is ominous as they prepare to come up against the league’s in-form forward, and Liverpool are far from a one-man band. That said, Salah has not scored at Old Trafford with supporters present and has been easily neutered there in the past.
The fixture is so drab so often and it has the makings of a draw. Liverpool’s game management was strikingly lax against Atletico Madrid when they were reduced to ten men and they are still eminently gettable even with Virgil van Dijk back. If Jurgen Klopp was more adventurous at Old Trafford in 2019, they might have won the title in front of a teeming Kop, and he has been similarly reticent in other encounters at United. Raphael Varane will be missed and United have kept one clean sheet in their last 20 games. It will be remarkable if they make it two in 21.
The Atalanta win was not significant but it has raised morale at the club and the atmosphere will be more fervent against Liverpool. United have what it takes to get a 'positive' result and that does not necessarily mean a win, which is an issue in itself. United drew at home with Liverpool two years ago and that was viewed as a step in the right direction, so they could be about to come full circle (again).
They are a team that goes round in circles.