#10. Sergio Aguero – £15 million
The forward scored 18 goals in his final season for Independiente which impressed Atletico Madrid enough to part with £15 million for the player. Sergio Aguero was an excellent striker for the Madrid side and was a more than adequate replacement for Fernando Torres who left the club for Liverpool a year later. Aguero followed the Spaniard’s footsteps and moved to Manchester City in 2011 where he has established himself as one of the deadliest forwards in football. Aguero was top scorer in the Premier League last season and has already won two Premier League titles and a Europa League during his career in Europe.