Answer
Yes, Juan Esnáider did play for Real Zaragoza. The Argentine striker had two stints with the Spanish club, first from 1991 to 1993, where he formed a prolific attacking partnership with striking legend, Gustavo Poyet, and then again in the 1994-95 season. During his time at Zaragoza, Esnáider showcased his goal-scoring prowess, leaving an indelible mark on the club's history.