Liverpool suffered an injury scare on Thursday after Mohamed Salah limped off just before halftime in Egypt's 2-2 draw with Ghana at the Africa Cup of Nations.
Salah, the Premier League's joint top scorer this season with Manchester City's Erling Haaland, went off the field due to an hamstring injury.
However, Liverpool manager Jurgen Klopp said on Friday that he didn’t have enough information about the extent of the injury.
"We don't know anything about it," Klopp told reporters on Friday. "I spoke with him last night and how it was. They are doing further assessments now and then we will know more.
"At that moment he was shocked and couldn't see why he was hit by something so intense. You have these hamstring injuries in a different way. He felt it and we know how rarely Mo goes off, or needs to go off, so it is definitely something, but I don't have any more information right now."
The 31-year-old doesn’t get injured often and has only missed 10 league games in more than six seasons.
Klopp also talked about whether Liverpool's medical staff would go to the Ivory Coast.
"We will see. It depends on the diagnostics," he said. "We will have ultrasound and MRI and then we will know what it is and we will see and make plans, but it's too early (at the moment)."
Liverpool, who will lock horns with Bournemouth on Sunday, top the Premier League on 45 points after 20 games, two points ahead of defending champions Manchester City.
Liverpool could potentially be without Trent Alexander-Arnold again on Sunday, Klopp said, after the defender injured his knee in their FA Cup third-round victory over Arsenal on January 7.
"Obviously he can walk, on the catwalk," Klopp said, when asked about Alexander-Arnold being spotted at a fashion show this week in Milan.
"The injuries are all positive, but not ready. (Alexander-Arnold, Andy Robertson and Dominik Szoboszlai) are all going in the right direction but we will see when they can join first-team training. I don't expect them for Bournemouth.
"I hope that nobody else will be out," the manager added. "After Bournemouth and maybe for Fulham (League Cup semi-final on Wednesday). Trent is close, Robertson close and Dom close. So all going in the right direction but for the weekend's game, no."