"We missed Cham's quality on Saturday. We're looking at two to three weeks out for him," Palace manager Tony Pulis said.
The Moroccan striker sat out Saturday's 1-0 Premier League defeat by Southampton. Pulis hoped he would make a quick recovery, but he will sit out this weekend's clash with Sunderland, as well as Premier League matches against Newcastle United and Chelsea.
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London, England -- Crystal Palace forward Marouane Chamakh will miss up to three weeks after suffering a hamstring injury in a 1-1 draw against Swansea City.