Zaha helped Palace to beat Watford 2 - 1 on Sunday to progress to the FA Cup final , where they will face United at the end of May .
Pardew believes the game at Wembley will be a special occasion for Zaha .
Zaha helped Palace to beat Watford 2 - 1 on Sunday to progress to the FA Cup final , where they will face United at the end of May , and Pardew believes the game at Wembley will be a special occasion for Zaha .