#4 Andre Schurrle
He began his professional footballing career at FSV Mainz in 2009. Schurrle then moved to Bayer Leverkusen and played two impressive seasons. His performances there gained Chelsea's attention, who signed him in 2013.
Schurrle helped Chelsea to 2014-15 Premier League title by scoring five times in his 22 appearances. Despite being a solid performer, Mourinho sold him to Wolfsburg. Schurrle criticized Mourinho for showing him the brutal side of a career in football. He also criticized Mourinho's demanding approach.
But Schurrle turned out to be a consistent performer for Wolfsburg. After leaving Chelsea, he won the DFB-Pokal and DFL-Supercup in his first year at Wolfsburg. He also won the 2016 DFB-Pokal with Borussia Dortmund.