The glaring attention that has centered around one global Liverpool icon shifted to another on Anfield's latest frustrating night.
The Egyptian forward has been under scrutiny for his poor form this campaign - and was relegated to the bench for the second successive Premier League game as the Black Cats visited on Wednesday.
But it was captain Virgil van Dijk, a exceptional defensive bedrock as Liverpool have swept up the complete set of major prizes, whose struggles came under the microscope during the stalemate.
Van Dijk, 34, and Salah, 33, both signed new lucrative two-year deals in the summer, with scarcely a Liverpool eyebrow raised at the prospect of securing the futures to a seasoned pair much nearer to the end of their careers than the start.
In fact, it was a moment of optimism - but now there is no denying the brutal reality that standards have dropped worryingly for both.
Liverpool have been vulnerable in defence ever since boss Arne Slot and the club's recruitment team undertook a £450m summer overhaul that has yet to prove anything like its worth.
Concurrently, Van Dijk has started to lose the aura of invulnerability he has held since his £75m move from Southampton in January 2018.
Van Dijk has received little support by fellow defender Ibrahima Konate's dramatic dip, along with Milos Kerkez struggling to adapt at left-back. But the renowned star has also fought his own battles, as highlighted 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 deserved lead, Van Dijk losing possession before standing off and turning away on a 25-yard shot that hit him and looped out of the reach of goalkeeper Alisson.
For a defender of such proven caliber, Van Dijk has an unusual habit of turning away on the ball, sometimes to Liverpool's cost.
Misfortune at the conclusion, yes, but it was a situation Van Dijk provoked with his unusual failure to make a decisive move, Sunderland's Talbi seizing the moment.
"Van Dijk surrenders possession and then he just backs 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 imperious, 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 securing two Premier Leagues, the Champions League, the FA Cup and two EFL Cups in a illustrious Liverpool career.
He has, though, looked a faded version of his usual dominant persona 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 sole responsibility alone in a Liverpool team full of experience, it was missing here. No-one was motivating a team that once again looked lost to take control by the throat.
Van Dijk's subpar showing, which ended with him being used as the emergency option 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 persisted with the side that stopped a run of nine losses in 12 games at London Stadium, Salah once more observing from the sidelines.
The Egyptian emerged at the start of the second half as the Kop looked to him for inspiration. It never came, 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 taken a deflection off Nordi Mukiele to set up what Liverpool hoped would be a dramatic ending.
Late drama came - but at the other end. Liverpool were only saved from humiliation 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 underperforming defending champions ultimately had to settle for a draw 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 lethargic, ponderous and lacking in ideas. Even the typical final push 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 rewarded for a summer of notable ambition in the transfer market, coupled with the superb management of Regis le Bris.
The Black Cats were adventurous, confident and dangerous.
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 disappointed 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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