7. Alvaro Arbeloa (January 2007)
Signed by Rafael Benitez from Deportivo La Coruna in January 2007, dependable Spanish full-back Alvaro Arbeloa proved to be an excellent acquisition for Liverpool.
He spent two-and-a-half years with the Reds, playing in the 2007 Champions League final and then, after returning from Euro 2008 with a winners' medal, helping Benitez's side finish second in the Premier League as first-choice right-back during the 2008-09 season.
After making 98 appearances for Liverpool, Arbeloa rejoined his boyhood club Real Madrid in the summer of 2009.