As things stand, Liverpool are facing a do-or-die clash in two weeks time.
The penultimate round of Champions League group fixtures haven’t been kind to the Reds for the most part thus far.
Jurgen Klopp’s side have been under the cosh so far in Paris, with PSG running rampant at Parc des Princes.
The likes of Neymar, Kylian Mbappe and Angel Di Maria threatened early on, but it was a full back that provided the opener.
Juan Bernat pounced after a rare feeble clearance from Virgil Van Dijk, giving the home side a sizeable advantage just 13 minutes in.
The visitors did recover somewhat, providing a threat of their own, but with the pressure continuing to pile up at the rear end of the pitch, they wilted.
Neymar and Mbappe tore through the Reds, and the Brazilian got his deserved goal after Edinson Cavani’s miss.
Just before half-time, Di Maria was judged to have brought Sadio Mane down in the box despite the decision not being given initially. James Milner tucked away the resulting penalty to finally lend Liverpool some relief heading into the second half.
However, Napoli are 2-0 up on Red Star Belgrade in the other Group C game. Having beaten Liverpool by the same scoreline in the reverse fixture, the Anfield side would have to win the final game by two clear goals to progress to the last 16, assuming PSG beat Red Star in the other fixture.