The unforgiving attention that has centered around one world-class Liverpool great switched to another on Anfield's fresh frustrating night.
Mohamed Salah has been under scrutiny for his subpar performances this campaign - and was placed on the bench for the second successive Premier League game as Sunderland came to town on Wednesday.
But it was captain Virgil van Dijk, a peerless defensive rock as Liverpool have collected the complete set of major prizes, whose struggles became the focus during the stalemate.
Van Dijk, 34, and Salah, 33, both signed new lucrative two-year deals in the summer, with not one Liverpool eyebrow raised at the prospect of offering extensions to a experienced stars much approaching the end of their careers than the start.
Indeed, it was a cause of celebration - but now there is no escaping the stark fact that standards have dropped alarmingly for both.
Liverpool have been exposed in defence ever since boss Arne Slot and the club's scouting department embarked on a £450m summer refit that has still to demonstrate anything like a good return.
Simultaneously, Van Dijk has started to lose the air of invincibility he has carried since his £75m move from Southampton in January 2018.
Van Dijk has not been helped by defensive partner Ibrahima Konate's loss of form, along with Milos Kerkez failing to settle at left-back. But the great Dutchman has also fought his own battles, as demonstrated by his rash handball that gave away a penalty in the significant Champions League loss to PSV Eindhoven at Anfield.
It was encapsulated in the 67th minute on Wednesday when Chemsdine Talbi gave Sunderland a deserved lead, Van Dijk losing possession before retreating and turning his back on a 25-yard shot that deflected off 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 away on the ball, sometimes to Liverpool's disadvantage.
Bad luck at the conclusion, yes, but it was a situation Van Dijk provoked with his uncharacteristic failure to act decisively, Sunderland's Talbi capitalising.
"Van Dijk gives the ball away and then he just retreats. 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 dominant, but right now he's making mistakes and hesitating."
As with Salah, a player of Van Dijk's caliber must not be dismissed after winning two Premier Leagues, the Champions League, the FA Cup and two EFL Cups in a glittering Liverpool career.
He has, though, looked a shadow of his usual dominant persona 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 sole responsibility alone in a Liverpool team packed with experience, it was absent here. No-one was rousing a team that once again looked lost to grab the game by the scruff of the neck.
Van Dijk's difficult night, which ended with him being used as the last resort of acting as an last-ditch attacker, was representative of a distinctly poor Liverpool performance - which made Sunday's win at West Ham seem like the outlier rather than the norm.
Slot persisted 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 came on at the start of the second half as the Kop turned to him for inspiration. It failed to materialize, with £125m Alexander Isak also quiet after getting off the mark 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 taken a deflection off Nordi Mukiele to set up what Liverpool hoped would be a thrilling finale.
Late drama came - but at the other end. Liverpool were only avoided defeat in stoppage time when Federico Chiesa's excellent defensive sprint allowed him to turn Sunderland substitute Wilson Isidor's shot off the line after he had beaten keeper Alisson.
Slot and his fading champions ultimately had to take a point knowing it could have been worse, with Alisson lucky 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 slow, ponderous and devoid of creativity. Even the traditional late rally after the equaliser carried scant belief. Performances like this are the reason their title defence has collapsed.
But huge credit for the Reds' struggles on Wednesday must be given to Sunderland, who are being rewarded for a summer of serious ambition in the transfer market, coupled with the excellent coaching of Regis le Bris.
The Black Cats were positive, confident and dangerous.
Sunderland are now sixth in the Premier League with 23 points. It is telling of the manner in which they have adapted to 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.
Elena Marchetti is a technology journalist with a passion for demystifying complex topics. She has been covering tech trends for over a decade.