Sadio Mane was substituted in the 58th minute following a tangle of legs with Leighton Baines in Liverpool’s 3-1 victory over Everton.
There has been no official word from the Reds as yet, but according to the Daily Mail, there are fears among the camp that the Senegal international will play no part in the final eight games of the campaign.
It is believed that the full extent of the injury is currently unknown as a scan was unable to take place on Monday due to swelling around the area.
Mane departed Anfield on Saturday without crutches and did not require a brace, but it has been reported that surgery could still be an option.
The former Southampton star, who has scored 13 league goals and five assists, is expected to miss tomorrow’s Premier League clash against Bournemouth.