Real Sociedad's Mexican forward Carlos Vela (C) celebrates Lyon's midfielder Clement Grenier (L) vies with Real Sociedad's defender Inigo Martinez (R) during the UEFA Europa League qualifier football match

Real Sociedad’s Mexican forward Carlos Vela (C) celebrates with teammates, forward Haris Seferovic (R) and midfielder Markel Bergara (L) after scoring during the UEFA Europa League qualifier football match Real Sociedad vs Olympique Lyonnais at the Anoeta stadium in San Sebastian on August 28, 2013. AFP PHOTO/ ANDER GILLENEA

Real Sociedad's Mexican forward Carlos Vela (C) celebrates Lyon's midfielder Clement Grenier (L) vies with Real Sociedad's defender Inigo Martinez (R) during the UEFA Europa League qualifier football match