West Ham defender Sam Byram has undergone successful knee surgery, after suffering a serious injury while out on loan at Nottingham Forest.
The 24-year-old limped off in the first half of Forest's 3-1 Carabao Cup win over Newcastle United - only his third appearance for Aitor Karanka's Championship side.
At the time of the injury, Forest boss Karanka said he
“I am not a doctor, but my feeling is that while he is not going to be back in a week or 10 days, we do not think it is not going to be six, seven or eight months either.
The exact layoff Byram expects to face has not currently been announced, though it is still likely the talented young star faces a few months on the sidelines.
The 24-year-old has made 36 appearances in all competitions for West Ham since his move to the London club in January 2016 from Leeds United - where he had progressed through the youth academy and was a first team regular.
However, last season the right back managed just 10 appearances, and only five in the Premier League, leading to his season-long loan move this summer.