Born in
Madrid, Sanz played youth football with
Real Madrid. A brief loan in Chile with
Unión Española notwithstanding, and scoring his only goal on 2 October in another home fixture that concluded with the same result, against
CA Marbella. In the summer of 1995, Sanz signed with
La Liga club
Real Oviedo. He played his first match in the competition on 3 September, featuring 77 minutes in the 1–0 loss at
Real Zaragoza. From there onwards, Sanz could hardly ever get a game at his next teams,
Racing de Santander and
RCD Mallorca. Consequently, he retired at the age of 27, later referring to himself in an interview conducted by daily newspaper
El País as a "bad player". ==Later life==