The intense attention that has centered around one global Liverpool great switched to another on Anfield's most recent desperate night.
The Egyptian forward has faced examination for his struggles this campaign - and was placed on the substitutes' bench for the second straight Premier League game as Sunderland came to town on Wednesday.
But it was leader Virgil van Dijk, a peerless defensive bedrock as Liverpool have swept up the array of major trophies, whose struggles became the focus during the draw.
Van Dijk, 34, and Salah, 33, both inked high-value two-year deals in the summer, with not one Liverpool concern voiced at the idea of handing contracts to a seasoned pair much nearer to the end of their careers than the start.
Truly, it was a moment of optimism - but now there is no escaping the stark fact that standards have dropped concerningly for both.
Liverpool have been vulnerable in defence ever since boss Arne Slot and the club's transfer committee undertook a £450m summer refit that has still to demonstrate anything like its worth.
At the same time, Van Dijk has started to forfeit the air of invincibility he has carried since his £75m transfer from Southampton in January 2018.
Van Dijk has received little support by center-back colleague Ibrahima Konate's loss of form, along with Milos Kerkez struggling to adapt at left-back. But the great Dutchman has also fought his own battles, as demonstrated by his rash handball that conceded 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 merited lead, Van Dijk losing possession before backing away and turning his back on a 25-yard shot that hit him and drifted out of the reach of goalkeeper Alisson.
For a defender of such undoubted greatness, Van Dijk has an curious trait of shying away on the ball, sometimes to Liverpool's detriment.
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 taking advantage.
"Van Dijk surrenders possession 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 impeccable. Every game he was imperious, but right now he's erring and hesitating."
As with Salah, a player of Van Dijk's caliber must not be discarded after claiming 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 commanding presence 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 exclusive domain alone in a Liverpool team packed with experience, it was missing here. No-one was rousing a team that once again looked bewildered 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 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 standard.
Slot persisted with the side that stopped a run of nine losses in 12 games at London Stadium, Salah once more starting on the sidelines.
The Egyptian was introduced at the start of the second half as the Kop pinned hopes on him for inspiration. It was not forthcoming, with £125m Alexander Isak also quiet after opening his account with his first league goal for Liverpool on Sunday.
Slot would have been under greater pressure 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.
A late scare 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 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, unimaginative and devoid of creativity. Even the customary late surge after the equaliser carried scant belief. Performances like this are the reason their attempt to retain the title has collapsed.
But huge credit 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 proactive, self-believing 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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