|Full name||Roberto Lago Soto|
|Date of birth||30 August 1985|
|Place of birth||Vigo, Spain|
|Height||1.78 m (5 ft 10 in)|
|Playing position||Left back|
|* Senior club appearances and goals counted for the domestic league only and correct as of 00:00, 27 October 2014 (UTC).
† Appearances (Goals).
A product of hometown Celta de Vigo's youth system, Lago made his debuts with the first team in the 2007–08 season, playing 33 matches for the Segunda División side which eventually finished 17th one year after being relegated. In the following years he was an undisputed starter when available, contributing with 35 games and one goal in the 2011–12 campaign as the Galicians returned to La Liga.
Lago's maiden appearance in the top flight was on 18 August 2012, starting in a 0–1 home loss against Málaga CF. He only missed four contests during the season, as Celta eventually stayed up at the expense of neighbouring Deportivo de La Coruña.
- As of 6 January 2014
|Spain||League||Copa del Rey||Europe||Total|
|2004–05||Celta B||Segunda División B||21||2||-||-||-||-||21||2|
- "El Celta se hace fuerte ante un Nàstic sin gol" [Celta gains strength against goalless Nàstic] (in Spanish). Marca. 13 January 2012. Retrieved 9 January 2014.
- "Roberto Lago cree que el Celta debe aspirar a ser campeón en Segunda" [Roberto Lago thinks Celta must aim to Segunda championship] (in Spanish). La Voz de Galicia. 15 February 2012. Retrieved 9 January 2014.
- "Olinga makes history". ESPN FC. 18 August 2012. Retrieved 9 January 2014.
- "El Getafe ficha a Roberto Lago" [Getafe signs Roberto Lago] (in Spanish). Goal.com. 12 June 2013. Retrieved 9 January 2014.
- "Roberto Lago". Soccerway. Retrieved 9 January 2014.