|Full name||Marcos Landeira Álvarez|
|Date of birth||2 May 1987|
|Place of birth||Gijón, Spain|
|Height||1.82 m (5 ft 11 1⁄2 in)|
|2008–2009||→ Melilla (loan)||23||(2)|
|2011||→ Real Unión (loan)||14||(0)|
* Senior club appearances and goals counted for the domestic league only|
A product of Sporting de Gijón's youth ranks, Landeira amassed 17 second division appearances with the first team over the course of three seasons combined. That total included three in 2007–08, as the club returned to La Liga after ten years.
In the following campaign, Landeira was loaned to third level side UD Melilla, returning to Sporting's reserves – also in that tier – in June 2009. He made his top flight debut on 17 April 2010, starting in a 0–3 away loss against Sevilla FC; it would be his only appearance of the season, as the Asturians once again managed to avoid relegation.
- Nine-man Gijon thrashed; ESPN Soccernet, 17 April 2010
- El Sporting B se pone en marcha (Sporting B gets going); El Comercio, 12 July 2011 (in Spanish)