Liverpool hold a 2-1 half-time lead over Zenit St Petersburg in the second leg of their Europa League last-32 tie at Anfield.
The Merseysiders will head out of the competition if the score remains the same, with Zenit hanging on to a 3-2 aggregate advantage.
The home side's first sight of goal came in the 10th minute when Steven Gerrard blasted his free kick well over the crossbar.
However, Liverpool's night took the worst possible turn when Zenit grabbed an away goal through Hulk nine minutes later.
The Brazilian striker was gifted the ball by Jamie Carragher, allowing him to run through in goal and slot past Pepe Reina.
Zenit's lead lasted seven minutes as Luis Suarez powered home a free kick through the opposition wall.
Liverpool then got themselves in front in the 43rd minute when Joe Allen converted Jose Enrique's cross at the second time of asking.
