4.Filipe Luis (Atletico Madrid)
Time at Chelsea: 2014-2015 – Sold for £11m
Filipe Luis was actually a decent left-back for Chelsea in the 2014/15 season. But he was under-utilized by Mourinho and Jose decided to get rid at the end of the season by selling him back to Ateltico Madrid after just one season. To be fair, that was the season Cesar Azpilicueta became a left-back which restricted Luis’ chances. Luis has gone on to become quite an important player at Atletico since.
3. Juan Cuadrado (Juventus)
Time at Chelsea: 2014-2015 – Sold for £17m
Juan Cuadrado never quite made it at Stamford Bridge. After just one season, Chelsea decided to loan the Colombian out to Juventus where he went on to shine as a left wing-back. Pacy, good on the ball and reasonable defending- we could’ve used him as a right wing-back under Antonio Conte! Oh well.