Arjen Robben (Sold to Real Madrid for £24m, 2007)
SUCCESS – The Dutchman won the La Liga title with Madrid, but didn’t reach his full potential before moving on to Bayern Munich in 2009.
Wayne Bridge (Sold to Manchester City for £12m, 2009)
FAILURE – Bridge quickly fell out of favour after joining City, making just 42 Premier League appearances in four years before ending his career with Reading.