Crystal Palace manager Roy Hodgson has rued the injury picked by Bakary Sako in their 1-1 draw with West Ham United.
The Mali international limped off in the first half of the English Premier League tie and could be out of action for a long period.
“We won’t know how bad it is until tomorrow but my medical staff and sports scientists are very good and have an unerring knack at being right with their initial prognosis, and they aren’t very optimistic – they don’t think it’s very good at all,” Hodgson told club website.
“The positivity of getting a point here is offset by paying such a high price if Bakary Sako is now going to miss a large part of the season, simply because we don’t really have the luxury of losing a forward player because we are so short in that area.”
Following the injury, the Eagles boss is hoping he can bring in another forward before the January transfer closes.
“It makes it a little bit more imperative that we bring some players in because otherwise, we’ll have a very thin squad, especially in the forward areas,” he continued.
“I haven’t spoken to Dougie Freedman or Steve Parish but we’re trying unbelievably hard to try and bring players in, and they’ve been working on that for a period of time.
“I don’t quite know where they are with the targets that we’ve had on our list, but I’m hoping for some good news in the next 24 hours.”
Christian Benteke put the Eagles ahead but Mark Noble scored from the penalty spot to level for the hosts as Palace recorded their fifth draw in the top-flight this season.