Alisson will miss Liverpool’s Champions League clash with Atletico Madrid.
The Brazil international suffered a seemingly innocuous injury in training ahead of the Reds’ FA Cup fifth-round exit to Chelsea on Tuesday.
But a follow-up scan revealed that he is set to miss both this weekend’s visit of Bournemouth and the last 16 showdown with Diego Simeone’s side.
It is the second time this season Alisson has been sidelined, having picked up a groin injury in Liverpool’s opening Premier League game against Norwich.
“Alisson had in training before the Chelsea game a little incident that we all thought was nothing,” confirmed Jurgen Klopp.
“It was clear he would not play anyway. The plan was that he was on the bench.
“Then we thought ‘oh come on, we don’t have to take any risks’ so left him out of the squad. He had a scan next day and they found something so now he’s out.
“Next week for sure [he won’t play] and then we will see.
“It’s a small muscle in the hip region. You could all do your work still but for a professional goalkeeper it’s slightly different so that’s the situation.”
The Liverpool admitted on Friday that he is unsure whether Alisson will be available in time for the Merseyside derby clash with Everton on March 16.
He added: “I don’t want to say no but I don’t know if he will be available for it.
“He’s not available for the next week; not for tomorrow and not for the next week.
“Then we have to judge the situation. I would say after the international break, he’s back 100 per cent. Whatever we can get before that, we will see.”