Oscar de Marcos Arana (Basque: [os̺kar de maɾkos̺ aɾana]; Spanish: [ˈoskaɾ ðe ˈmaɾkos aˈɾana]; born 14 April 1989) is a Spanish professional footballer who plays for Athletic Bilbao usually as a midfielder but also as a full back (right or left).
He spent most of his career at Athletic Bilbao, making over 400 official appearances and winning two Supercopa de Espana trophies. He started playing with Alaves.
Club Career
Alaves
Born in Laguardia, Alava, de Marcos made his professional debut for nearby Deportivo Alaves. He first appeared in the second division in the home fixture against CD Tenerife on 21 December 2008, coming on as a late substitute in a 2–1 loss.
De Marcos eventually played in 20 games with the first team, as they dropped down a level at the season's end. He started his career as a forward.
Athletic Bilbao
In July 2009, de Marcos went straight into La Liga, penning a four-year deal with Athletic Bilbao for about €350,000.
This page also has a version in other languages : Оскар де Маркос (russian)
CSKA Moscow 
FC Rostov 
Leicester 
Chelsea 
Valencia 
Betis 
Dynamo Kyiv 
Chornomorets Odesa 
Verona 
Inter 
Bayer Leverkusen 
FC Heidenheim 
Borussia Dortmund 
SC Freiburg 
VFL Wolfsburg 
Union Berlin 
Arsenal 
Nottingham Forest 
Everton 
Brentford 
Spartak Moscow 
Lokomotiv Moscow 
Rangers 
Dundee Utd 
Atletico Madrid 
Alaves 
Lens 
Marseille 
Ingulets Petrove 
Shakhtar Donetsk 
AC Milan 
Juventus 
ST Malo 
Bordeaux 
Manchester City 
Tottenham 
Eintracht Frankfurt 
Werder Bremen 
Girona 
Espanyol 
Feyenoord 
Heerenveen 
ST Etienne 
Montpellier 
Grenoble Foot 38 
Heart Of Midlothian 
Celtic 
Reims 
Lyon 
PSV 
Groningen 
Celta Vigo 
Barcelona 
Benfica 
Estrela Da Amadora 
Sparta Rotterdam 
AZ Alkmaar 
Southampton 
Liverpool