The Egyptian star suffered an ankle injury, and therefore did not participate in the Reds' last meeting in the Premier League against Crystal Palace, which ended with the club's 2-1 victory.
Klopp, in comments highlighted by the site "Liverpool Eco": "Salah's participation against Naples? It seems in good shape, especially during the training of the team the day before yesterday."
Liverpool defender Juergen Klopp has made clear the case of Egyptian star Mohamed Salah before facing Napoli on Wednesday in the fifth round of the Champions League group stage.
The club after the Crystal Palace confirmed that Salah will be fit for the site of Naples. "Joel Matip is getting better, but he needs to stay out of the team for some time."
He added: "Salah yesterday did not much during the training, so we will assess his condition in Maran today, but I am not worried about it."