The unforgiving spotlight that has centered around one global Liverpool icon shifted to another on Anfield's latest frustrating night.
The Egyptian forward has come under fire for his subpar performances this campaign - and was placed on the bench for the second straight Premier League game as Sunderland arrived on Wednesday.
But it was captain Virgil van Dijk, a peerless defensive bedrock as Liverpool have swept up the complete set of major trophies, whose struggles took center stage during the stalemate.
Van Dijk, 34, and Salah, 33, both signed new lucrative two-year deals in the summer, with not one Liverpool concern voiced at the prospect of handing contracts to a seasoned pair much approaching the end of their careers than the start.
In fact, it was a moment of optimism - but now there is no escaping the stark fact that standards have dropped alarmingly for both.
Liverpool have been vulnerable in defence ever since manager Arne Slot and the club's recruitment team embarked on a £450m summer rebuild that has yet to prove anything like value for money.
Concurrently, Van Dijk has started to lose the aura of invulnerability he has carried since his £75m switch from Southampton in January 2018.
Van Dijk has not been helped by defensive partner Ibrahima Konate's collapse in form, along with Milos Kerkez struggling to adapt at left-back. But the renowned star has also had significant difficulties, as highlighted by his desperate handball that resulted in 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 well-earned lead, Van Dijk giving the ball away before retreating and turning his back on a 25-yard shot that deflected off him and floated out of the reach of goalkeeper Alisson.
For a defender of such unquestionable quality, Van Dijk has an peculiar tendency of shying away on the ball, sometimes to Liverpool's cost.
Misfortune at the finale, 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 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 making mistakes and second-guessing himself."
As with Salah, a player of Van Dijk's caliber must not be dismissed after securing 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 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 preserve alone in a Liverpool team full of experience, it was missing here. No-one was inspiring a team that once again looked bewildered to seize the initiative by the initiative.
Van Dijk's subpar showing, which ended with him being used as the emergency option of acting as an last-ditch attacker, was indicative of a distinctly poor 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 starting on the sidelines.
The Egyptian came on at the start of the second half as the Kop turned to him for inspiration. It failed to materialize, 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 greater pressure had Florian Wirtz's 81st-minute shot not been turned in 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 outstanding recovery run allowed him to turn Sunderland substitute Wilson Isidor's shot off the line after he had rounded 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 sluggish, unimaginative and devoid of creativity. Even the typical final push after the equaliser carried little conviction. Performances like this are the reason their title defence has fallen apart.
But significant praise for the Reds' struggles on Wednesday must be given to Sunderland, who are being reaping the benefits for a summer of serious ambition in the transfer market, coupled with the fine work of Regis le Bris.
The Black Cats were positive, confident and threatening.
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 back to the drawing board.