Crystal Palace boss Sam Allardyce is relying on Damien Delaney and Martin Kelly to provide cover for the injured Mamadou Sakho for the rest of the season.
Sakho, who has been instrumental for Palace since his loan move from Liverpool in January, suffered a serious looking knee injury against Spurs on Wednesday and he is now expected to miss the rest of the season.
Allardyce said: "We think it's a ligament, but which one we don't know.
"We certainly hope it's not the cruciate but it could be the medial or the lateral, but it certainly looks like a hyper-extension of the knee and we wait and see what the scan shows.
"With such a short amount of time left we won't know if any of our defenders will get fit again and we might have to rely on Damien [Delaney] and Martin [Kelly] for the remaining games of the season."