Newcastle United can confirm midfielder Sean Longstaff is likely to miss the remainder of the 2018/19 season with a knee ligament injury.

The 21-year-old – who has been shortlisted for the Premier League’s Player of the Month for February – was replaced at half time during Saturday’s Premier League game at West Ham United.

Academy graduate Longstaff has made 13 appearances in all competitions for the Magpies this term, scoring twice.