Liverpool are reportedly worried about being without Jordan Henderson for Sunday's clash with Leicester City after their skipper picked up a knock on international duty with England.
The 30-year-old was replaced by Harry Winks in the second half of the Three Lions' 2-0 UEFA Nations League defeat to Belgium on Sunday.
England boss Gareth Southgate revealed after the match that the substitution was a precautionary measure, with Henderson suffering from tightness in his leg.
According to the Liverpool Echo, Henderson is certain to miss Wednesday's meeting with Iceland and is a big doubt for Liverpool's return to Premier League action next weekend.
Jurgen Klopp has already lost Joe Gomez to a long-term injury sustained during England training last week, while Andrew Robertson missed Scotland's defeat to Slovakia on Sunday with a hamstring issue.