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To remember Juventus in 2005 is to remember the Kop shaking, throbbing, with voices hoarse and hangovers incoming.

To think back even further, to other European quarter-finals, is to recall David Fairclough slaloming through St-Etienne, or the eventual coin toss against Cologne.

There is even the night against Borussia Dortmund in more recent history, when the power of Anfield emerged once more, this time under Jurgen Klopp.

Famous evenings, storied and etched in folklore. All remembered, all lauded.

Most importantly, all organic. Natural. The thing that Liverpool just do.

There has been an overreaction in certain quarters to recent developments surrounding the Reds' next European quarter final, their 24th in total.

The fan 'coach greeting' advertised on social media has attracted widespread attention, from the Manchester press to Merseyside Police.

The image, shared widespread on Twitter, urged supporters to line the streets two hours before the Anfield tie with Manchester City.

“Bring your flares and flags,” it exclaimed. “Pints and pyro.

“There will be thousands of Scouse voices ready to scare 'em back to Mancland.”

The originator of the post has since clarified his intentions and emphasised he does not condone violence towards City.

And while the use of pyrotechnics are illegal, and footage of the greeting the Villarreal coach was given in 2016 does not paint such congregations in the best light, these greetings have been used to support, rather than scare.

In the title bid of 2014, as well as some high-profile games since, this display of support has been adopted by thousands of Liverpool fans. It has become a way to galvanise the players and begin an atmosphere which, in theory, then transports into the ground.

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It worked against City four years ago, undoubtedly. The emotion and noise from Anfield, as Liverpool won 3-2, has not been topped since. The stands still reverberate after Philippe Coutinho's late winner.

But this is the European Cup. A quarter final. Liverpool's first since 2009 and, arguably, the biggest game the stadium has witnessed since the Reds faced Chelsea in 2014.

(Image: Andrew Powell/Liverpool FC via Getty Images)

There should be no need for posters; no necessity for a digital call-to-arms.

Liverpool fans need no invitation to have Anfield rocking on a night like that. For all the bluster about showing Pep Guardiola's side 'exactly what money can't buy', this tie is all about Liverpool, and nothing to do with their rivals down the M62.

A clash with the modern-day City has a wider meaning to some. Many regard them as the epitome of modern football, the nouveau riche of English football. It is an appraisal that loses a little bit of authority when the £75million spent on Virgil van Dijk in January is considered.

But then, there is their late title snatch of 2014; the League Cup final of 2016; Raheem Sterling and a 5-0 humbling. Revenge can be served.

Anfield will shake and sound off as it has for decades. Greeting the bus is a new phenomenon, but it is one that was founded quietly, a movement which grew into something bigger. There were words on fan forums, a few tweets, more rarely were posters drawn.

They are not needed. Neither is a call-to-arms or collective rallying of the troops. It wasn't required against St-Etienne, Juventus or Dortmund, and it won't be required now.

In a week when Manchester United were rumoured to be considering song sheets in an attempt to improve the Old Trafford – claims since dismissed – the importance of organic support has never been greater in a game that is sometimes susceptible to manufacture.

'Support and believe' read one banner in the run to Champions League final in 2005.

Perhaps there should be more belief in the support. They will turn up at Manchester City and line the streets to give their team a boost. They don't need to be told twice.