Los Blancos go into this weekend's clash in fourth place in the table, eight points behind their bitter rivals Barcelona at the summit.
Zaragoza, who have won three on the bounce in all competitions, can move into seventh place with victory over Real, provided other results go their way.
Real Madrid: DWLWW
Real Zaragoza: LLWWW
Real Madrid: Casillas; Varane, Pepe, Ramos; Khedira, Ozil, Alonso, Modric; Ronaldo, Benzema, Di Maria
Real Zaragoza: Roberto; Alvaro, Loovens, Sapunaru, Minero; Movilla, Apono, Montanes, Zuculini; Postiga, Rodriguez
Sports Mole says: 2-1