Jurgen Klopp has revealed Robert Firmino will be "out for a while" as he gave an injury update on the striker following Liverpool's win over Norwich.
The Reds secured a comeback victory over Dean Smith's men with goals from Sadio Mane, Mohamed Salah and Luis Diaz.
Firmino was unexpectedly left out of the matchday squad after playing a starring role in a 2-0 win against AC Milan midweek in the first leg of their Champions League last 16 tie.
The Brazilian climbed off the bench in the second half at the San Siro to score the opener with a glancing header.
And Klopp has confirmed the reason he was missing against Norwich was due to a muscle injury and the forward could be on the sidelines for a prolonged period of time, as a result.
Will Liverpool be able to cope without Digo Jota and Roberto Firmino? Comment below
He said: "Diogo (Jota) was not available and we don't know how long it will take.
"Bobby Firmino has a muscle problem and is out for a while, so we have to keep the boys fit and create a spirit like the boys did today in the game."
Klopp was pleased with Liverpool's second-half performance as they came from behind to secure the three points after Milot Rashica opened the scoring for the visitors.
He added: "It had its moments, the longer the game went on the more I could enjoy it, obviously.
"A week or go when we played at Burnley, they give you a proper fight and over the years you learn to deal with these situations, again today. Norwich have a very different style but played a proper game, defended deep, had their counter-attacks, made it really tricky for us.
"We had moments and then the game can look completely different, then a deflected ball can be pretty decisive, but these boys just don't give up, we could help from the bench, bringing really good players on and that was like three days ago the game-changer.
"We played really good football and scored wonderful goals. The coaching team, we changed the system as well, go for 4-4-2 and that is necessary in a moment like this that you throw all the knowledge you have together - it gave them a proper challenge to deal with because all of a sudden we were a threat in all moments.
"Thiago with his passing, really fresh, really relaxed, full of confidence, that helped as well. He is a good player, we just have to make sure we can keep him fit."
