The No.20 sustained a muscle problem after coming on as a substitute against Crystal Palace last month and is facing a spell on the sidelines.
However, Klopp told his pre-Bournemouth press conference: “It will be close. He can come back again, no rush [because] it makes no sense, but if Adam is available then we will see. How I said, I don’t want to close the door for the season, how can I?
“It’s not good. Joel Matip is for sure out – I saw him walking around here and he will not come back [this season], but with the other two [Lallana and Emre Can] there is at least a little bit of hope.”
Meanwhile, Klopp has hinted Jordan Henderson will return to Liverpool’s starting line-up for the clash against the Cherries after sitting out Tuesday’s win at Manchester City due to suspension.
Asked whether the captain faced a challenge to get back into the XI, the manager replied: “No. I have four senior midfield players I can play now.
“Jordan played outstandingly good in the last few games and now I tell him because he was not involved in the City game because of a second yellow ‘now you have to fight back, my friend’. No, not a shadow of a doubt about attitude.
“He is already hot, he has the freshest legs in the midfield so I would be silly if I did not use him.”