Jurgen Klopp has revealed captain Jordan Henderson, who has not played since the second match of the season after heel problems and then a broken bone in his foot, will not be considered until fully fit.
The midfielder returned to training with the full squad this week and his manager admits he is taking it day-by-day with the 25-year-old.
"He wants (to play) but we have to wait," said Klopp.
"I am waiting for him, that is what I told him. For a player like him he is always (knocking) on the door saying 'Give me five minutes, 10 minutes'.
"I like this, but it is not always the best thing to do. He has a big step ahead of him now.
"Everything we do is 120 per cent so you need to be prepared for this. Players like Hendo have to be fit, not only 50 per cent.
"If he is in this shape we can use him and he can help us."
Klopp also questioned whether Christian Benteke, whose brilliantly-taken goal won the game against Bordeaux, is ready to start again after 90 minutes against the French club.
"I don't know in this moment if Christian is capable of playing two games in three days. We will have to decide," he said.
"But it is not the most difficult situation at this moment with the strikers because we have Christian, Divock (Origi) and Roberto (Firmino) who are good.
"We need all of them for this big number of games."