Harvey Elliott's shock goal fired them to a smash-and-grab victory over a dominant PSG at the Parc des Princes in the Champions League.
Elliott had been on the pitch for 47 seconds and scored with his first touch in the 87th minute to help them take a 1-0 back to Anfield in the last 16 tie.
PSG's front three of Khvicha Kvaratskhelia, Ousmane Dembele, and Bradley Barcola wreaked havoc as the French champions - unbeaten in the league this season - had the Reds under the cosh all night.
Kvaratskhelia had a goal ruled out for a tight offside and Ibrahima Konate was fortunate to avoid a red card for a controversial challenge on Bradley Barcola.