The Portuguese had to come off during the Reds' win over Brentford in the Premier League at the weekend.
Klopp told reporters: I would like to sit here and say we have absolutely no issues but obviously we have some.
So, not available is obviously Ali (Alisson), that's a muscle injury where we don't know exactly how long it takes but definitely not for foreseeable time coming back.
Then we have Diogo (Jota) with a knee issue, is ruled out. Curtis (Jones), with a bone ligament issue, ruled out."
He added: "The others we will deal with it day-by-day with muscle things. Trent (Alexander-Arnold) and Dom (Dominik Szoboszlai) are on the way back but not in team training yet.
