Jordan Ayew admits Crystal Palace suffered a wake-up call at Leicester ahead of their FA Cup showdown with Chelsea.
The Eagles lost 2-1 at the King Power Stadium and face Chelsea in the semi-final on Sunday.
Ademola Lookman and Kiernan Dewsbury-Hall scored for Leicester with Wilfried Zaha pulling a goal back in the second half.
Zaha's effort came after Kasper Schmeichel saved his penalty, only for VAR to rule Caglar Soyuncu had encroached and order a retake.
Schmeichel saved his second spot-kick but the forward nodded in the rebound - but Ayew knows they have to improve ahead of their Wembley trip.