The glaring focus that has centered around one global Liverpool icon shifted to another on Anfield's most recent desperate night.
Mohamed Salah has faced examination for his subpar performances this season - and was consigned to the substitutes' bench for the second successive Premier League game as Sunderland arrived on Wednesday.
But it was skipper Virgil van Dijk, a peerless defensive rock as Liverpool have swept up the full collection of top honors, whose struggles became the focus during the 1-1 draw.
Van Dijk, 34, and Salah, 33, both agreed to lucrative new two-year deals in the summer, with not one Liverpool eyebrow raised at the notion of handing contracts to a experienced stars much approaching the end of their careers than the start.
In fact, it was a cause of celebration - but now there is no escaping the harsh truth that performance has dipped worryingly for both.
Liverpool have been susceptible in defence ever since manager Arne Slot and the club's transfer committee undertook a £450m summer refit that has still to demonstrate anything like a good return.
Simultaneously, Van Dijk has started to shed the aura of invulnerability he has carried since his £75m transfer from Southampton in January 2018.
Van Dijk has faced additional challenges by center-back colleague Ibrahima Konate's collapse in form, along with Milos Kerkez failing to settle at left-back. But the great Dutchman has also struggled badly, as highlighted by his panic-stricken handball that conceded a penalty in the heavy Champions League loss to PSV Eindhoven at Anfield.
It was exemplified in the 67th minute on Wednesday when Chemsdine Talbi gave Sunderland a deserved lead, Van Dijk giving the ball away before backing away and turning away on a 25-yard shot that struck him and looped out of the reach of goalkeeper Alisson.
For a defender of such unquestionable quality, Van Dijk has an unusual habit of shying away on the ball, sometimes to Liverpool's disadvantage.
Ill fortune at the finale, yes, but it was a situation Van Dijk provoked with his uncharacteristic failure to make a decisive move, Sunderland's Talbi capitalising.
"Van Dijk gives the ball away and then he just backs off. It's the mistake. He needs to go to the ball. Him not making the decision means that no one else knows what to do."
"Virgil Van Dijk last season was faultless. Every game he was commanding, but right now he's slipping up and hesitating."
As with Salah, a player of Van Dijk's caliber must not be written off after claiming two Premier Leagues, the Champions League, the FA Cup and two EFL Cups in a stellar Liverpool career.
He has, though, looked a faded version of his usual imperious self this season, with the lowest recovery numbers per game during his Liverpool career, while defensive actions are also down on last season.
And, while leadership should not be Van Dijk's preserve alone in a Liverpool team full of experience, it was missing here. No-one was motivating a team that once again looked lost to take control by the initiative.
Van Dijk's poor display, which ended with him being used as the emergency option of acting as an emergency striker, was symptomatic of a horribly mediocre Liverpool performance - which made Sunday's win at West Ham seem like the exception rather than the norm.
Slot kept faith with the side that stopped a run of nine losses in 12 games at London Stadium, Salah once more starting on the sidelines.
The Egyptian came on at the start of the second half as the Kop pinned hopes on him for inspiration. It never came, with £125m Alexander Isak also quiet after opening his account with his first league goal for Liverpool on Sunday.
Slot would have been under even more pressure had Florian Wirtz's 81st-minute shot not been turned in off Nordi Mukiele to set up what Liverpool hoped would be a dramatic ending.
Stoppage-time tension came - but at the other end. Liverpool were only saved from humiliation in stoppage time when Federico Chiesa's outstanding recovery run allowed him to turn Sunderland substitute Wilson Isidor's shot off the line after he had rounded keeper Alisson.
Slot and his underperforming defending champions ultimately had to settle for a draw knowing it could have been worse, with Alisson blessed to turn Trai Hume's shot onto the bar in the first half before Omar Alderete headed against the post after the interval.
Liverpool were sluggish, labored and devoid of creativity. Even the traditional late rally after the equaliser carried little conviction. Showings like this are the reason their attempt to retain the title has crumbled.
But full acknowledgment for the Reds' struggles on Wednesday must be given to Sunderland, who are being rewarded for a summer of notable ambition in the transfer market, coupled with the excellent coaching of Regis le Bris.
The Black Cats were adventurous, confident and threatening.
Sunderland are now sixth in the Premier League with 23 points. It is indicative of the manner in which they have grown into life in the Premier League that they will be unhappy they left Anfield without adding two more to their tally.
For Slot and Liverpool, it is back to the drawing board.
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