Guinea global Keita has taken a while to settle since his summer move from RB Leipzig but in recent weeks had started to show the form which persuaded Jurgen Klopp to spend £52.7million and wait an additional 12 months for him.
But Souare has dismissed those fears, telling Football Factory Radio et TV: 'First of all we wish Naby a very good and quick recovery, as far as I know the adductors cannot prevent him from playing the CAN2019 that will be played from June 22nd for Guinea. "What we do know is that Naby Keita will play at the African Cup of Nations 2019".
Speaking ahead of Liverpool's trip to Newcastle United on Saturday, Klopp said: "It was really unlucky".
The defensive midfielder was forced off the pitch in the 24 minute after suffering an adductor injury during the opening stages of Liverpool's UCL semi-final clash against Barca. "A high-grade adductor injury, the tendon is ruptured".
'Bad news for us but bad news for him with the African Cup of Nations coming up.
"That is how football and life sometimes are, not too nice". It was a really, really good moment. "I think there are two things - a very interesting part of the season and he is not part of [it], that's one thing".
The tournament, held this year in Egypt, gets underway June 21, with Guinea drawn alongside Nigeria, Madagascar and Burundi in Group B.
"It's good. We will use him, of course".
Asked about how his side were dealing with the blow of losing heavily to Barcelona, Klopp said: "We didn't need to pick players up in Barcelona and give them a hug".
"We want a second medical opinion and we are seeking the expertise of the doctor in Switzerland who Keita always contacts whenever he's injured", Guinea's national coach told the Federation on their Facebook page.