The Mexico international has failed to make the expected impact at Celtic and is reportedly keen on leaving the club.
Real Zaragoza are reportedly planning to make a 3.5million euros bid for the 23-year-old.
Juarez’s agent Jorge Berlanga said: “Efrain would prefer to stay in Europe and there is interest from a club in Spain.
“He never got as much football as he’d have liked in Scotland and it’s all about getting games.”
