The intense focus that has centered around one world-class Liverpool great shifted to another on Anfield's most recent disappointing night.
Mohamed Salah has faced examination for his subpar performances this campaign - and was placed on the sidelines for the consecutive Premier League game as Sunderland came to town on Wednesday.
But it was skipper Virgil van Dijk, a peerless defensive foundation as Liverpool have collected the full collection of major prizes, whose dip in performance came under the microscope during the draw.
Van Dijk, 34, and Salah, 33, both agreed to new lucrative two-year deals in the summer, with not one Liverpool question asked at the idea of offering extensions to a veteran duo much nearer to the end of their careers than the start.
Indeed, it was a moment of optimism - but now there is no avoiding the brutal reality that levels have fallen alarmingly for both.
Liverpool have been susceptible in defence ever since boss Arne Slot and the club's recruitment team undertook a £450m summer rebuild that has yet to prove anything like its worth.
Concurrently, Van Dijk has started to shed the aura of invulnerability 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 loss of form, along with Milos Kerkez failing to settle at left-back. But the renowned star has also struggled badly, as proved by his desperate handball that conceded a penalty in the heavy Champions League loss to PSV Eindhoven at Anfield.
It was captured in the 67th minute on Wednesday when Chemsdine Talbi gave Sunderland a deserved lead, Van Dijk surrendering the ball before backing away and averting his body on a 25-yard shot that hit him and floated out of the reach of goalkeeper Alisson.
For a defender of such proven caliber, Van Dijk has an peculiar tendency of turning away on the ball, sometimes to Liverpool's disadvantage.
Misfortune at the conclusion, yes, but it was a situation Van Dijk invited with his uncharacteristic failure to act decisively, Sunderland's Talbi capitalising.
"Van Dijk loses the ball and then he just retreats. It's the wrong decision. 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 dominant, but right now he's making mistakes and doubting 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 stellar Liverpool career.
He has, though, looked a pale imitation of his usual imperious self this season, with the lowest recovery numbers per game during his Liverpool career, while tackles and interceptions are also down on last season.
And, while leadership should not be Van Dijk's exclusive domain alone in a Liverpool team packed with experience, it was lacking here. No-one was rousing a team that once again looked bewildered to grab the game by the throat.
Van Dijk's poor display, which ended with him being used as the desperate measure 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 anomaly rather than the norm.
Slot stayed with the side that ended a run of nine losses in 12 games at London Stadium, Salah once more watching from the sidelines.
The Egyptian was introduced at the start of the second half as the Kop pinned hopes on him for inspiration. It failed to materialize, with £125m Alexander Isak also ineffective 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 deflected in 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 spared embarrassment 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 dribbled past keeper Alisson.
Slot and his underperforming defending champions ultimately had to take a point knowing it could have been worse, with Alisson fortunate 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 lacking in ideas. Even the traditional late rally after the equaliser carried little conviction. Performances like this are the reason their defense of their crown has crumbled.
But huge credit for the Reds' struggles on Wednesday must be given to Sunderland, who are being seeing the results for a summer of clear intent in the transfer market, coupled with the superb management of Regis le Bris.
The Black Cats were proactive, assured and a genuine threat.
Sunderland are now sixth in the Premier League with 23 points. It is symptomatic of the manner in which they have grown into life in the Premier League that they will be frustrated they left Anfield without adding two more to their tally.
For Slot and Liverpool, it is time for reflection.
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