The intense spotlight that has fallen upon one elite Liverpool icon switched to another on Anfield's most recent desperate night.
Mohamed Salah has been under scrutiny for his struggles this season - and was relegated to the bench for the second successive Premier League game as Sunderland visited on Wednesday.
But it was leader Virgil van Dijk, a exceptional defensive foundation as Liverpool have secured the full collection of major trophies, whose dip in performance took center stage during the stalemate.
Van Dijk, 34, and Salah, 33, both agreed to lucrative new two-year deals in the summer, with barely a Liverpool question asked at the idea of offering extensions to a veteran duo much closer to the end of their careers than the start.
Indeed, it was a reason for joy - but now there is no denying the brutal reality that standards have dropped worryingly for both.
Liverpool have been susceptible in defence ever since manager Arne Slot and the club's scouting department embarked on a £450m summer refit that has yet to prove anything like a good return.
Simultaneously, Van Dijk has started to lose the aura of invulnerability he has possessed since his £75m move from Southampton in January 2018.
Van Dijk has not been helped by fellow defender Ibrahima Konate's loss of form, along with Milos Kerkez not finding his feet at left-back. But the great Dutchman has also had significant difficulties, as proved by his desperate handball that conceded a penalty in the heavy 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 giving the ball away before retreating and turning his back 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 turning his back on the ball, sometimes to Liverpool's cost.
Ill fortune at the conclusion, yes, but it was a situation Van Dijk provoked with his atypical failure to take charge, Sunderland's Talbi capitalising.
"Van Dijk surrenders possession 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 faultless. Every game he was dominant, but right now he's erring and doubting himself."
As with Salah, a player of Van Dijk's caliber must not be discarded 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 worst recoveries 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 missing here. No-one was motivating a team that once again looked lost to take control by the scruff of the neck.
Van Dijk's poor display, which ended with him being used as the last resort of acting as an emergency striker, was symptomatic of a deeply underwhelming Liverpool performance - which made Sunday's win at West Ham seem like the exception rather than the standard.
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 was introduced 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 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 grandstand finish.
Stoppage-time tension 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 struggling title-holders ultimately had to accept the 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 lacking in ideas. Even the traditional late rally after the equaliser carried minimal threat. Displays like this are the reason their attempt to retain the title has fallen apart.
But full acknowledgment for the Reds' struggles on Wednesday must be given to Sunderland, who are being reaping the benefits for a summer of clear intent in the transfer market, coupled with the superb management of Regis le Bris.
The Black Cats were positive, confident 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 a case of going back to basics.
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