Alex Song joined Arsenal in 2005 and left the club in 2012 to join Barcelona. During his stint with the Gunners, he played 215 games and made a reputation as one of the best defensive midfielders in the league.
At Barcelona, it was not surprising that he remained an understudy to the world-class Sergio Busquets during his only two seasons at the club, and sometimes he was even played in defence. In these two seasons, he only started 29 league games.
After two underwhelming seasons at Barcelona, he was sent on loan to West Ham where he only managed to play 46 games in all competitions across two full seasons.