The sequel is rarely better than the original.
How Liverpool must be sick of the sight of Arsenal. Once more - for the third time since July, no less - a limited outfit full of little but resilience and organisation dug in deep to scrape the result they came for against Jurgen Klopp's side.
After Monday's high-octane, pulsating 3-1 triumph, the Reds were forced to graft and scrap their way to a penalty shootout after the two teams had played out a bore draw for the TV cameras only.
And while last year's crazy 5-5 draw ended in success from spot-kicks in front of a raucous -and full - Kop end, it was Arsenal who this time squeezed their way to the Carabao Cup's quarter-finals inside a deathly silent Anfield.
Liverpool were in this competition for just a week before their exit was confirmed. But while one trophy has now already fallen by the wayside for Klopp, he will lose little sleep on Thursday night once the frustration has subsided by the time he reaches his Merseyside home.
And on the day the Champions League draw was made to pit the six-time winners against Ajax, Atalanta and FC Midtjylland in Group D, the focus will quickly return to the biggest prizes at stake for the Reds.
Klopp made nine changes for this one as he shuffled his pack ahead of Sunday's trip to Aston Villa in the Premier League.
They included a first full start for both Diogo Jota and Harry Wilson, who was a surprise inclusion given the interest in him from Burnley.
Wilson's inclusion was at the expense of Xherdan Shaqiri whose days appear numbered at Liverpool after interest from two clubs.
The new man got underway superbly with his first goal for the Reds on Monday and on his maiden start since that £45million switch from Wolves, he was a bundle of activity, harrying and harassing Arsenal out of possession throughout.
No wonder Pep Lijnders calls him a "pressing machine."
For Wilson, who was making his full Liverpool debut after a string of loan spells away from the club, this was a big opportunity to show his manager that he belongs here for the long term.
A bid from Burnley perhaps suggests it doesn't, but it will be interesting to see what happens with the Wales winger before transfer deadline day is over.
Despite what Klopp protested, pre-match, the Carabao Cup unashamedly represented the lowest of Liverpool's priorities and there will be few inquests into this tumble out of it.
One aspect that will rankle for some inside the squad, though, is that their hopes of some game-time in the first team have probably taken a mortal blow.
Last year's ride to the quarters provided a welcome respite from the stresses and strains of that Premier League title quest, but not sooner has this year's started, it was over. Hopes for EFL Cup glory shelved for another season.
These two last met in this competition 12 months ago, and on that occasion, there were 120 minutes, 10 goals and a penalty shootout, but this one never threatened to get anywhere close to such drama as the visitors pilfered a 4-3 win on penalties.
And while that 5-5 game was one of the most wild and wintry nights at Anfield for many a year, last season's eventful campaign was also memorable for the likes of Neco Williams, Curtis Jones and Harvey Elliott, as they took their first real steps towards the first-team setup under Klopp.
Now all established as 'proper' members of a squad that will have every inch of it utilised throughout a condensed season, they were once more asked to influence proceedings by Klopp as Jones and Williams retained their places from last week.
Just seven days after suffering at the hands of the anonymous abusers of Twitter, Williams put his best foot forward again and turned in a steady and solid performance down the right. One clearance in particular from Bukayo Saka was excellent.
"You are not a Liverpool supporter if you don’t support," stated assistant boss Pep Lijnders ahead of this game, in reference to those who bizarrely attacked the 20-year-old full-back after that 7-2 win at Lincoln last week.
He was right and this display from a player who is already a fully-fledged Wales international will have banished any lingering confidence issues suffered at the hands of the witless warriors of the keyboard.
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Liverpool had Adrian to thank for keeping it goalless when he flung himself at the feet of Eddie Nektiah to scoop the ball clear at the Kop end.
The hosts' best chance of the first half arrived at the end when Jota's header was saved by the inspired Bernd Leno before Takumi Minamino could only somehow find the underside of the bar with the goal gaping.
The Reds almost took the lead after the break when Marko Grujic's knock-down at a corner was met by Virgil van Dijk's prod. Leno got down though to deny the big Dutchman.
And the German goalkeeper once more came to the rescue as Grujic's low shot was stopped before Jota was denied with another strong hand.
It had turned into a game of Liverpool versus the Arsenal keeper and Leno rose to thwart Grujic's looping header from a corner before it became Adrian's turn keep out Rob Holding's powerful effort.
Mercifully, the very few on-lookers inside the stadium were spared a further 30 minutes as the final whistle signaled penalties. It was left to Joe Willock to convert the decisive kick after Wilson and Divock Origi had missed.
Silver medalists in 2016, semi-finalists a season later and knocked out by the eventual runners-up in 2018, it was only the madness of being made to play in two competitions across less than 24 hours that stopped them attempting to reach the last four last term.
A scheduling tangle meant Liverpool's senior stars were made to watch on from Qatar when the youngest Liverpool team ever were beaten 5-0 at Aston Villa back in December.
In short, Klopp has never devalued the League Cup, but he won't be too despondent at seeing his packed schedule somewhat eased by the midweek gaps that now await Liverpool.
That, if there is to be any silver lining from a miserable night, is probably it for the champions.
There are bigger fish to fry for the Reds this season and on the day that their Champions League fate was learned, that should not slip from view.
This will sting, but not for long.