Jurgen Klopp believes it could ‘take some time’ for Alisson’s return from injury.
Alisson has not featured in Liverpool’s previous three games since suffering a calf problem in the first half of their 4-1 win over Norwich City.
Summer signing Adrian continues to deputise in place of the Brazil international, who was initially forecast to be sidelined with the injury for up to eight weeks.
But hopes of an earlier return were fuelled by Alisson appearing to walk freely when he received the Champions League’s Best Goalkeeper award on Thursday.
Klopp, however, is continuing to exercise caution and admits that the 26-year-old will still need time before he again starts for the current Premier League leaders.
“He made steps, of course, [in recovery] but it was a proper injury, so it will still take time,” said the Liverpool manager.
“How it always is with professional sportsmen, when you have a muscle thing and it takes long, then it takes a while as well until you can bring the muscle to at least the same level it was before.
“A calf muscle is pretty important for jumping – and for a goalie, it is quite important that you can jump from time to time, so it will take time.
“But, thank God – and hopefully it stays like this – we have a fit Adrian in the back and now in charge, which is good.
“So far, I am really happy with everything I saw. He is a good guy, which is important as well, but most importantly of course he can catch balls and that’s good as well.
“The solution we found for it is really good, but of course it would be better if Ali was around but that will take still some time.”