Liverpool were beaten 4-2 by Aston Villa on Friday night, as pressure continued to intensify on Arne Slot in the Anfield dugout.
A dismal night brought rare positives for the Reds, but Salah's return to action after missing the last two games through injury was one of the few highlights.
The Egyptian came off the bench for the final 16 minutes at Villa Park, replacing the anonymous Cody Gakpo, but even his introduction couldn't help the visitors turn the tide.
Slot's men have now conceded a record 52 goals in a single 38-game Premier League campaign, and if they aren't careful, they could miss out on Champions League football.
Wins for Brighton and Bournemouth in their final two games and defeat for Liverpool against Brentford would see the Reds drop down to seventh.
Salah is desperate to stop that possibility from happening, issuing a statement to the fans on social media after another "painful" defeat against Aston Villa, even urging the Reds to return to the "heavy metal" football that they played under Jurgen Klopp.
He closed the post by saying that "qualifying for the Champions League is the bare minimum", and a victory over Brentford would ensure their place in Europe's elite competition next term on his final game for the Reds