#3 Illaramendi
Asier Illarramendi is a product of the youth academy of Real Sociedad. The defensive midfielder made became a key player at Real Sociedad and thanks to him the club reached the Champions League for the first time in ten years. At the LFP Awards, 'Illarra' was named 'Breakthrough Player' and 'Best Midfielder'.
Real Madrid was impressed with Illarramendi as well. The top club paid €32,2 million to Real Sociedad for the midfielder. With this transfer, 'Illarra' became the most expensive Spanish player of all time in the history of Real Madrid.
Asier Illarramendi didn't play as well for Real Madrid as for Real Sociedad. After two years, Illarramendi returned to his former club Real Sociedad for €16 million euros.