Klopp must decide whether to name Oxlade-Chamberlain in a matchday squad for the first time this season after he spent the week building up his fitness at Melwood.
“Dejan (Lovren) was ill but he should be available again," Klopp said.
“Pretty much all the rest should be available. I heard nothing serious after Porto.
“Joe (Gomez) looked good. Will he start? We'll see. We have a lot of players with a lot of rhythm but it's good to have him. It's the same with Ox. It's very good to have them back and in contention."