|Full name||Enrique Álvarez Sanjuán|
|Date of birth||20 July 1975|
|Place of birth||Vigo, Spain|
|Height||1.80 m (5 ft 11 in)|
|Playing position||Centre back|
|1997–1998||→ Logroñés (loan)||16||(0)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
During a 16-year professional career he appeared in 369 games, 200 of those in La Liga. Having started his career at Barcelona, where he had no impact for its first team – one match – he would be an important member of Villarreal's top flight consolidation, representing the club for seven years.
Álvarez was born in Vigo, Galicia. Grown through the ranks of FC Barcelona he played only one La Liga game for the Catalans in the 1995–96 season, then spent one loan stint with CD Logroñés before being released, after which he joined Barça neighbours UE Lleida (both teams were in the second division).
Álvarez made a name as a top level player during his stay at Villarreal CF, where he was team captain when a starter. Having managed more than 200 appearances overall – 187 of those in the top level, second-most for the club behind Argentine Rodolfo Arruabarrena – his role would diminish in the 2006–07 campaign however, as Villarreal finished fifth (only 15 matches).
In July 2007 Álvarez joined Recreativo de Huelva, where his season would be constantly bothered by injuries. In one of his few league appearances, on 1 March 2008, he was sent off for a dangerous challenge on Real Madrid's Arjen Robben, after just six minutes on the pitch (Álvarez was brought on in the 64'), during a 2–3 home loss. In 2008–09 he only took part in one league game for already doomed Recre, a 1–2 loss at Sporting de Gijón in the last round, and was subsequently released.
Retired at 34, Álvarez moved into coaching, starting with Barça's Juvenil A.
- Robben, otro mes de baja (Robben, one more month out); El País, 4 March 2008 (Spanish)
- Sporting Gijon 2–1 Recreativo Huelva; ESPN Soccernet, 31 May 2009
- "Òscar entrenará al Juvenil A" [Òscar to coach Juvenil A] (in Spanish). El Mundo Deportivo. 27 July 2010. Retrieved 5 February 2014.
- "“Quique” Álvarez Sanjuán" (in Spanish). Mitos Futbolísticos. 23 June 2011. Retrieved 5 February 2014.