7. Dmytro Chygrynskiy – £18million
A lot of people may not even remember this guy or may not have even heard of him, but back in 2009, FC Barcelona paid £18million to sign him from Shakhtar Donetsk.
The Ukrainian centre-back spent just one year at the Nou Camp before returning to Shakhtar after he struggled to settle in Spain and failed to break into the Barca first-team.
After an £18m move, Chygrynskiy made just 12 La Liga appearances for the Catalan side before moving back to Ukraine for just £11m.
The 28-year-old is now playing for Dnipro.