Manchester City midfielder Samir Nasri may be facing a potential four-year ban but the Frenchman showed no sign of it as he put in an impressive display for Sevilla on Saturday night.

Nasri, who has been accused of breaking World Anti-Doping Agency rules, played the full 90 minutes as Sevilla thrashed Real Sociedad 4-0 at the Anoeta Stadium.

A hat-trick from Wissam Ben Yedder and a strike from Pablo Sarabia sealed the victory for the away side.

Samir Nasri (right) vies for the ball with Real Sociedad midfielder Asier Illarramendi (left)

Nasri (right) played the full 90 minutes as Sevilla thrashed Real Sociedad 4-0 on Saturday

Sevilla are now Real's closest challengers after leapfrogging Barcelona in to second place with a 4-0 victory at Real Sociedad.

Sociedad had not been beaten at home since losing to Real Madrid on the opening weekend of the season, but they were a shadow of the side which had climbed into the top six.

Ben Yedder gave Sevilla the lead when Geronimo Rulli spilled Franco Vazquez's 25th-minute shot and he finished from a tight angle.

Four minutes later a Yuri Berchiche mistake allowed Vazquez to head the ball into Ben Yedder's path and he rounded Rulli before lashing the ball home.

Rulli atoned for his earlier error by foiling Samir Nasri and Sergio Escudero, but Aritz Elustondo's miskick saw Ben Yedder slip Sarabia through after 73 minutes.

Ben Yedder had scored a Copa Del Rey hat-trick against Formentera just before the Christmas break, and the Frenchman repeated the feat seven minutes from time for his 15th goal of the season.

French forward Wissam Ben Yedder (right) shoots to score the opening goal