Crystal Palace boss Roy Hodgson admits Wilfried Zaha is out of their clash with Leeds on Sunday.
Goalkeeper Vicente Guaita is also missing for the game.
On Zaha, Hodgson said: It's a groin strain, there's no question about that. We're looking after him, he's having treatment. The doctors and physios won't put a timestamp on it, but there's a double-whammy with Vicente Guaita.
He [Vicente] brought up his calf injury at half-time, and with our game coming up against Leeds we have to wait and see what our doctors say about him."
It's hard to cope without a player of Wilf's calibre. It's not just us, it's any team in the league - if you lose a player of such importance and such quality, you're going to miss him, there's no doubt about it.
We're lucky, in a sense, with Jordan Ayew and Jean-Philippe Mateta, as they're bursting at the seams for an opportunity and with the game against Leeds we can see what they can do."