Jurgen Klopp has confirmed Alisson will miss the next few weeks with a calf injury.
The Brazilian sustained the injury in the first half of Friday's 4-1 win over Norwich City.
Speaking to the club's website on Monday, Klopp said of Alisson's injury: "[It's] not too cool. It's a calf injury which takes him obviously out for a while.
"I don't want to make now [an] exact prognosis on when he will be back, but it will not tomorrow for sure, so now then we have to see. It takes a while, it takes a couple weeks for sure, and we have to see.
"I saw already like 'six weeks' and stuff like this, but Ali was not a lot injured in his career so I would like to wait a little bit to see how he develops in that process now, but he is not in for the next few weeks."
