Liverpool defender Joe Gomez has been ruled out for the rest of the season with a knee injury, Press Association Sport understands.

The 18-year-old was forced from the field after injuring his right knee in the 80th minute of England Under-21s' 3-0 victory against Kazakhstan on Tuesday night.

Young Lions boss Gareth Southgate moved to ease fears over the extent of Gomez's injury after the game, but Liverpool will hold a press conference on Thursday where they are expected to confirm that the 18-year-old left back's season is over.

''It seems to be okay, we were a bit concerned at first but we are hopeful it's nothing too serious,'' Southgate said.

Gomez played in the Liverpool's first five Premier League games of the season, as well as their first two Europa League encounters against Bordeaux and FC Sion -- but Alberto Moreno has been preferred in recent weeks.

His absence will be a blow to new Liverpool manager Jurgen Klopp, who is set to take charge for the first time at Tottenham in Saturday's lunchtime Premier League encounter. Liverpool signed Gomez from Sky Bet Championship side Charlton for $5 million in June.