Liverpool have a mountain to climb in their Champions League group following Wednesday's 2-1 defeat away to Paris Saint-Germain.
In order for the Reds to reach the last 16, they must beat group-leaders Napoli at Anfield in two weeks' time.
Napoli are unbeaten in the Champions League thus far and beat Liverpool 1-0 in the return fixture at the beginning of October.
Something Jurgen Klopp must address for the clash is his team selection. Against PSG the German made a number of questionable changes to the team that won at Watford last weekend.
Joe Gomez replaced Trent Alexander-Arnold at right-back, Dejan Lovren slotted alongside Virgil van Dijk and Jordan Henderson started next to James Milner and Georginio Wijnaldum in midfield.
It was the midfield that Liverpool fans were most worried about heading into the game and their fears were soon realised as Henderson and co. were completely outclassed.
With Naby Keita and Fabinho on the bench, Liverpool's midfield trio lacked pace and genuine protection in front of the defence. PSG cut through them too easy at times.
If one statistic sums up how languid Henderson, Milner and Wijnaldum were, it's that Keita completed more dribbles during his 20-minute cameo than the three of them combined.
Liverpool fans want to see a few changes for this weekend's Merseyside derby as a result and during Friday's press conference Klopp was asked about his midfield.
But he provided an answer that's somewhat worried Kopites. According to Klopp, there isn't anything wrong with the midfield trio that started against PSG.
His defence is that Liverpool have only conceded five goals in the Premier League this season, which is absolutely true.
But there's an argument to be made that it's because of Liverpool's defence that they've achieved that feat, so their midfield definitely still needs attending to.
"We concede five goals [in the league this season] and you talk about how our midfield is overrun?" said Klopp, per Paul Joyce. "I don't see that. I don't see any problems in midfield."
Here's how Liverpool fans have been reacting to Klopp's comments ahead of a hugely important game against Everton.
Whether Klopp sticks or twists remains to be seen, but with £100m worth of midfield talent on the bench the 51-year-old might be wise to make some changes.
Xherdan Shaqiri could be a good option for the Everton game, too, to add some spark into Liverpool's midfield going forward.