César Láinez Sanjuán (born 10 April 1977) is a Spanish retired professional footballer who played as a goalkeeper, and is the manager of CD Teruel.
A Real Zaragoza youth graduate, Zaragoza-born Láinez made his professional debut with its B-side, but struggled initially to find a first-team place.
In January 1999 he served a six-month loan stint at Villarreal CF, playing three La Liga matches as the season ended in relegation.
He was instrumental in the Aragonese club's immediate promotion, and subsequently helped it finish in a comfortable 12th place, also conquering the Copa del Rey after an extra time win against Real Madrid.
[6] On 9 June 2017, after managing to avoid relegation with the main squad, Láinez signed a new three-year contract with the reserve side.