Another Mohamed Salah master-class helped Liverpool take control of their Champions League semi-final 5-2 but two late Roma away goals gave the Italian side a glimmer of hope for the second leg.
Liverpool, who last reached the final in 2007, repeatedly breached the visitors’ naively high defensive line and scored five times in the opening 68 minutes at a raucous Anfield.
Salah, who has now scored 43 goals since his summer move from Roma, scored twice and assisted two other goals.
He curled his first into the top corner from the edge of the box – then clipped the ball over Alisson for a second.
Salah then ran down the right and squared for Sadio Mane to make it 3-0 – before doing the same to set up Roberto Firmino.
Firmino then headed in a fifth following James Milner’s corner.
With his side leading 5-0, Reds boss Jurgen Klopp took off Salah – and Roma gave themselves a chance for next week’s return leg at the Stadio Olimpico.
First Edin Dzeko lashed home from Radja Nainggolan’s pass, then Diego Perotti put a penalty into the top right corner after Milner handled Nainggolan’s shot.
Roma need only look to the last round for inspiration, when they lost the first leg in Barcelona 4-1 before winning 3-0 in Roma. A repeat of the latter scoreline this time would take them into the final against Bayern Munich or Real Madrid who meet in the other semi final first leg clash at the Allianz Arena in Munich.