Liverpool welcomed back Sadio Mane during Saturday's comprehensive win over Bournemouth.
Mane was thrown on in the late stages, while Mohamed Salah and Roberto Firmino also came back into the line-up after both played just the second period at Turf Moor.
Andy Robertson and Georginio Wijnaldum were welcomed back into the starting XI on the south coast after receiving a well-earned rests on Wednesday evening, and will be fit to face Napoli.
But Adam Lallana is a doubt following a head injury suffered against Bournemouth.
The midfielder received a nasty cut to the head, but hinted he will be available to face Napoli after the game. Lallana posted on Instagram: "4 stitches to go with the 3 points... but feeling great. Brilliant team performance and result. Anfield on Tuesday then..."
Dejan Lovren did not recover in time to play on Saturday and remains a major doubt, while Nathaniel Clyne, Joe Gomez and Alex Oxlade-Chamberlain are nursing long-term injuries.
Meanwhile, Dominic Solanke is on the brink of a return. Jurgen Klopp said ahead of Saturday's match: "Dom is close. I really hope he will be in team training again from Sunday on. But we have to see."
Liverpool's Champions League squad: Alisson Becker, Simon Mignolet, Nathaniel Clyne, Virgil van Dijk, Dejan Lovren, Alberto Moreno, Andy Robertson, Joel Matip, Fabinho, Gini Wijnaldum, James Milner, Naby Keita, Jordan Henderson, Adam Lallana, Xherdan Shaqiri, Roberto Firmino, Sadio Mane, Mohamed Salah, Daniel Sturridge, Divock Origi, Dominic Solanke
