8) Luis Garcia
Luis Garcia turned out to be a really good signing as he played a big role in Liverpool's road to the finals of the Champion's League the year they won it and played his last match for Liverpool in January 2007.
After a ruptured ligament in his last game, he returned to his former club Atletico Madrid in July 2007 where he stayed for two seasons. Following this, he had spells at Racing de Santander, Panathinaikos FC, Puebla FC and Club Universidad Nacional.
He announced his retirement in January 2014 but came out of retirement in July to play in the inaugural season of the Indian Super League as a Marquee signing for Atletico de Kolkata. In 2016 he signed for Central Coast Mariners FC and currently serves as a pundit for beIn Sports during their coverage of Euro 2016.