Liverpool forward Roberto Firmino is a doubt for the trip to Newcastle on Saturday night.
The Brazil international tore a thigh muscle in training last week and although he came on as a late substitute in the Champions League defeat in Barcelona , he is unlikely to be risked with the second leg coming up on Tuesday.
Midfielder Naby Keita's season has been ended by a groin injury sustained in the Nou Camp, meaning he will play no part in this weekend's crucial encounter.
He limped off midway through the first half of the 3-0 Champions League semi-final first leg defeat to Barcelona in the Nou Camp on Wednesday and will now not be fit to return until pre-season training begins in July.
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"It was really unlucky. Bad news, he has a high grade adductor injury, the tendon is ruptured, which keeps him out for at least two months," said Klopp , who will be without the midfielder for Saturday's trip to Newcastle as well as home games against Barcelona and Wolves on the final day of the season.
"Bad news for us obviously but bad news for Guinea as well because the Africa Cup of Nations is coming up.
"He was in a really good moment, but that's how football and life sometimes is. Not too nice but very serious.
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"For sure he's not in the best moment but it's OK I think. There are two things: a very interesting part of the season he's not part of, on the other hand Guinea I don't think is a regular (qualifier) for the Africa Cup of Nations.
"That was, for sure, a big target for him as well so he is not in a good moment. That's a moment when you have to help the players, we try everything we can."
Provisional squad: Alisson, Alexander-Arnold, Lovren, Van Dijk, Robertson, Fabinho, Henderson, Wijnaldum, Salah, Mane, Origi, Mignolet, Gomez, Matip, Moreno, Milner, Oxlade-Chamberlain, Shaqiri, Sturridge, Firmino.
