Liverpool are currently third in Group C of the lauded European tournament and sit behind both PSG and Napoli who have eight and nine points respectively.
The Reds have six, meaning they need to beat Napoli tonight to stand a chance of entering the knock-out stages of the competition.
Ahead of the incredibly important tie, Jurgen Klopp has emphasised Liverpool must use its momentum to achieve a home win tonight.
He said: “We have been in a good moment for weeks and months as a club and a team. We have to use it.
“One of the most difficult teams to play at this moment is Napoli. They were already really strong last year and they have adapted really well to the little changes that Carlo Ancelotti has made. They are a really good football side but we are good as well.
“The position in the table doesn’t help us or Napoli. It is all about this game. We didn’t win often enough to be through already. That’s our mistake and now we can put it right if we perform.
“We do not need to make it any bigger than it is, but it is big, really big. That is exactly how we want to take it.”
Klopp admitted Liverpool will have to work hard tonight to take all three points but added his squad are “desperate” to remain in the Champions League.
He went on: “It’s an opportunity for us. The boys, I know, are desperate to stay in the competition. We have to play football and work hard for it.”
How to watch Liverpool vs Napoli
Liverpool will host Napoli at Anfield tonight with kick-off taking place at 8pm.
BT Sport 2 (channel 409 BT TV, 414 Sky, 868 Sky HD) will air coverage of the match.
BT Sport will also be showing the match on desktop computers or laptops via the company’s own site.
The BT Sport enhanced video player is available online.
But EE mobile customers will be able to stream the game for free, thanks to a subscription plan recently announced by the network.
BT said: “To say thanks for being with us, here’s a special sporting treat for our pay monthly mobile and tablet customers: three months’ free BT Sport on your EE phone and connected tablet.
“Just text SPORT to 150, register for a BT ID then download the BT Sport app and get watching!
“Loads of the UK’s best sporting action, on the UK’s fastest network.”
You can visit the EE website for more information on the BT Sports offer.