Salah tested positive for coronavirus twice during the international break with Egypt, forcing him to eat a 3-0 win over Leicester City on Sunday.
However, the striker now has a negative test and is back in the game.
“Mo trained yesterday and looked really good. All the tests were negative, so he is available if nothing changes,” Klopp told reporters.
The manager, however, still does not know how soon players like Jordanordan Henderson (thigh), Thiago Alcantara (knee) and Herredan Shaqiri (muscle) will return.
“Everyone else – no news. Will see. I do not want to talk too much about it because I have no idea who Atalanta can bring – so why give any information?” He added.
Predicted Liverpool XI: Allison; Н. Williams, R. Williams, Matip, Robertson; Onesons, Vijnaldum, Milner; Wrong, Firmino, Iota
Additional notification from the Press Association.