The unforgiving attention that has fallen upon one elite Liverpool icon switched to another on Anfield's fresh disappointing night.
Mohamed Salah has come under fire for his poor form this season - and was relegated to the substitutes' bench for the consecutive Premier League game as Sunderland arrived on Wednesday.
But it was captain Virgil van Dijk, a exceptional defensive foundation as Liverpool have swept up the complete set of top honors, whose struggles became the focus during the draw.
Van Dijk, 34, and Salah, 33, both inked new lucrative two-year deals in the summer, with scarcely a Liverpool concern voiced at the notion of handing contracts to a veteran duo much nearer to the end of their careers than the start.
In fact, it was a reason for joy - but now there is no denying the brutal reality that levels have fallen worryingly for both.
Liverpool have been vulnerable in defence ever since manager Arne Slot and the club's recruitment team undertook a £450m summer refit that has yet to prove anything like a good return.
Concurrently, Van Dijk has started to lose the sense of being untouchable he has held since his £75m switch from Southampton in January 2018.
Van Dijk has faced additional challenges by fellow defender Ibrahima Konate's loss of form, along with Milos Kerkez struggling to adapt at left-back. But the esteemed defender has also fought his own battles, as proved by his panic-stricken 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 well-earned lead, Van Dijk giving the ball away before standing off and averting his body on a 25-yard shot that struck him and floated out of the reach of goalkeeper Alisson.
For a defender of such proven caliber, Van Dijk has an curious trait of shying away on the ball, sometimes to Liverpool's cost.
Misfortune at the end, yes, but it was a situation Van Dijk invited with his unusual failure to make a decisive move, Sunderland's Talbi seizing the moment.
"Van Dijk loses the ball and then he just backs off. 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 couldn't make a mistake. Every game he was dominant, but right now he's slipping up and doubting himself."
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 exclusive domain alone in a Liverpool team brimming with experience, it was lacking here. No-one was inspiring a team that once again looked lost to grab the game by the throat.
Van Dijk's subpar showing, which ended with him being used as the desperate measure of acting as an makeshift forward, was indicative of a deeply underwhelming Liverpool performance - which made Sunday's win at West Ham seem like the anomaly rather than the norm.
Slot persisted with the side that halted a run of nine losses in 12 games at London Stadium, Salah once more observing from the sidelines.
The Egyptian came on at the start of the second half as the Kop turned to him for inspiration. It was not forthcoming, with £125m Alexander Isak also ineffective after scoring his first 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 excellent defensive sprint 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 settle for a draw 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, labored and short on invention. Even the customary late surge after the equaliser carried little conviction. Showings like this are the reason their attempt to retain the title has collapsed.
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 superb management of Regis le Bris.
The Black Cats were positive, self-believing and threatening.
Sunderland are now sixth in the Premier League with 23 points. It is indicative of the manner in which they have adapted to 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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