The glaring focus that has fallen upon one global Liverpool icon shifted to another on Anfield's fresh disappointing night.
The Egyptian forward has been under scrutiny for his subpar performances this campaign - and was placed on the sidelines for the second successive Premier League game as the Black Cats arrived on Wednesday.
But it was leader Virgil van Dijk, a exceptional defensive bedrock as Liverpool have collected the complete set of top honors, whose dip in performance took center stage during the stalemate.
Van Dijk, 34, and Salah, 33, both inked lucrative new two-year deals in the summer, with not one Liverpool eyebrow raised at the prospect of offering extensions to a seasoned pair much approaching the end of their careers than the start.
Truly, it was a cause of celebration - but now there is no denying the brutal reality that standards have dropped alarmingly for both.
Liverpool have been susceptible in defence ever since head coach Arne Slot and the club's transfer committee began a £450m summer overhaul that has not yet shown anything like a good return.
At the same time, Van Dijk has started to lose the air of invincibility he has possessed since his £75m transfer from Southampton in January 2018.
Van Dijk has received little support by fellow defender Ibrahima Konate's dramatic dip, along with Milos Kerkez not finding his feet at left-back. But the great Dutchman has also fought his own battles, as proved by his panic-stricken handball that conceded a penalty in the significant Champions League loss to PSV Eindhoven at Anfield.
It was captured in the 67th minute on Wednesday when Chemsdine Talbi gave Sunderland a deserved lead, Van Dijk giving the ball away before backing away 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 undoubted greatness, Van Dijk has an unusual habit of turning away on the ball, sometimes to Liverpool's disadvantage.
Misfortune at the finale, yes, but it was a situation Van Dijk courted with his uncharacteristic failure to make a decisive move, Sunderland's Talbi seizing the moment.
"Van Dijk gives the ball away and then he just drops 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 faultless. Every game he was commanding, but right now he's slipping up and hesitating."
As with Salah, a player of Van Dijk's pedigree must not be dismissed 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 pale imitation of his usual imperious self this season, with the worst recoveries 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 full of experience, it was missing here. No-one was inspiring a team that once again looked clueless to seize the initiative by the throat.
Van Dijk's difficult night, which ended with him being used as the desperate measure of acting as an last-ditch attacker, was indicative of a horribly mediocre Liverpool performance - which made Sunday's win at West Ham seem like the exception rather than the standard.
Slot stayed with the side that halted 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 looked to him for inspiration. It was not forthcoming, with £125m Alexander Isak also ineffective after getting off the mark with his first league goal for Liverpool on Sunday.
Slot would have been under increased scrutiny had Florian Wirtz's 81st-minute shot not been turned in off Nordi Mukiele to set up what Liverpool hoped would be a grandstand finish.
Late drama 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 rounded keeper Alisson.
Slot and his struggling title-holders ultimately had to settle for a draw 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 sluggish, ponderous and lacking in ideas. Even the customary late surge after the equaliser carried scant belief. Performances like this are the reason their title defence has collapsed.
But full acknowledgment for the Reds' struggles on Wednesday must be given to Sunderland, who are being reaping the benefits for a summer of notable ambition in the transfer market, coupled with the superb management of Regis le Bris.
The Black Cats were proactive, assured and a genuine threat.
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 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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