The unforgiving attention that has centered around one elite Liverpool icon shifted to another on Anfield's latest disappointing night.
Mohamed Salah has been under scrutiny for his subpar performances this season - and was consigned to the substitutes' bench for the second straight Premier League game as Sunderland arrived on Wednesday.
But it was skipper Virgil van Dijk, a peerless defensive foundation as Liverpool have collected the complete set of major prizes, whose struggles came under the microscope during the 1-1 draw.
Van Dijk, 34, and Salah, 33, both agreed to lucrative new two-year deals in the summer, with scarcely a Liverpool eyebrow raised at the prospect of handing contracts to a seasoned pair much approaching the end of their careers than the start.
Truly, it was a reason for joy - but now there is no escaping the brutal reality that performance has dipped worryingly for both.
Liverpool have been exposed in defence ever since head coach Arne Slot and the club's scouting department undertook a £450m summer refit that has not yet shown anything like its worth.
Concurrently, Van Dijk has started to lose the air of invincibility he has possessed since his £75m move from Southampton in January 2018.
Van Dijk has faced additional challenges by center-back colleague Ibrahima Konate's dramatic dip, along with Milos Kerkez not finding his feet at left-back. But the esteemed defender has also fought his own battles, as proved by his desperate handball that gave away a penalty in the heavyweight Champions League loss to PSV Eindhoven at Anfield.
It was encapsulated in the 67th minute on Wednesday when Chemsdine Talbi gave Sunderland a well-earned lead, Van Dijk surrendering the ball before backing away and turning away on a 25-yard shot that struck him and floated out of the reach of goalkeeper Alisson.
For a defender of such undoubted greatness, Van Dijk has an curious trait of turning his back on the ball, sometimes to Liverpool's disadvantage.
Misfortune at the end, yes, but it was a situation Van Dijk courted with his unusual failure to act decisively, Sunderland's Talbi capitalising.
"Van Dijk loses the ball and then he just drops off. It's the incorrect choice. 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 impeccable. Every game he was commanding, but right now he's slipping up and second-guessing himself."
As with Salah, a player of Van Dijk's caliber must not be written off after winning two Premier Leagues, the Champions League, the FA Cup and two EFL Cups in a illustrious Liverpool career.
He has, though, looked a shadow of his usual imperious self this season, with the poest ball recovery rate per game during his Liverpool career, while key defensive stats 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 inspiring a team that once again looked lost to seize the initiative by the throat.
Van Dijk's subpar showing, which ended with him being used as the last resort of acting as an last-ditch attacker, was representative of a horribly mediocre Liverpool performance - which made Sunday's win at West Ham seem like the anomaly 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 watching from the sidelines.
The Egyptian emerged at the start of the second half as the Kop looked to him for inspiration. It was not forthcoming, with £125m Alexander Isak also quiet after opening his account with his first league goal for Liverpool on Sunday.
Slot would have been under increased scrutiny had Florian Wirtz's 81st-minute shot not deflected in off Nordi Mukiele to set up what Liverpool hoped would be a grandstand finish.
A late scare came - but at the other end. Liverpool were only avoided defeat in stoppage time when Federico Chiesa's superb tracking back allowed him to turn Sunderland substitute Wilson Isidor's shot off the line after he had dribbled past keeper Alisson.
Slot and his struggling title-holders ultimately had to take a point 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 short on invention. Even the customary late surge after the equaliser carried little conviction. Performances like this are the reason their attempt to retain the title has collapsed.
But significant praise for the Reds' struggles on Wednesday must be given to Sunderland, who are being reaping the benefits for a summer of notable ambition in the transfer market, coupled with the excellent coaching of Regis le Bris.
The Black Cats were proactive, confident and a genuine threat.
Sunderland are now sixth in the Premier League with 23 points. It is telling of the manner in which they have embraced 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 a case of going back to basics.
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