The midfielder settled the Premier League encounter at the City Ground with 90+7 minutes on the clock by converting from close range.
He thought he had netted the winner a few moments before, only to have an effort chalked off by VAR for handball in a frantic conclusion.
Team
Liverpool needed to make a late change as Florian Wirtz was forced to drop out of the XI following the warm-up, with Curtis Jones called up from the bench.
Elsewhere, Hugo Ekitike and Ryan Gravenberch returned to the line-up after starting the win over Brighton & Hove Albion in the Emirates FA Cup as substitutes.
Liverpool: Alisson, Van Dijk, Konate, Kerkez (Robertson, 83), Jones (Gomez, 83), Szoboszlai, Mac Allister, Salah (Ngumoha, 77), Gakpo (Chiesa, 77), Ekitike, Gravenberch.
Unused subs: Mamardashvili, Woodman, Nyoni, Ramsay, Morrison.