English-born of Ghanaian descent Jesurun Rak-Sakyi is expected to spend several weeks in the treatment room following the injury sustained at Crystal Palace last month.
Rak-Sakyi was not in action for the Eagles this weekend when they recorded a 2-0 away win over Burnley at the Turf Moor.
The 21-year-old will undergo scans to determine the severity of the injury, but manager Roy Hodgson describes the injury as very bad.
“It is bad. We don’t know 100 per cent. We’re not talking a week or two — we’re probably talking longer than that. It’s a real blow," he said.
“Just as you get Eberechi Eze and Michael Olise back almost into the fold, you lose another player who we think is very important for us in our attacking play. We regained two and lost one. I would have preferred to have all three.”
He was voted Crystal Palace's Player of the Month for October after a string of performance at the first team since his return from a season-long loan spell at Charlton Athletic.
Rak-Sakyi remains eligible to represent Ghana despite playing for England at the youth level.
