#3 Mario Gotze
Fellow German teammate Mario Gotze pulled off the exact opposite of what Mats Hummels did. Gotze joined Borussia Dortmund as an eight-year-old and quickly made his way into the first team in 2010 under the guidance of Jurgen Klopp. He became one of the core players behind the success of Dortmund for the next three years. However, lured by the indomitable success of Bayern Munich, Gotze moved to the Bavarian side in 2013.
However, he was not able to make as many starts for the German champions as he would have liked to. Gotze spent most of his time at the club on the bench, coming on as a substitute and barely getting any starts. His winning goal at the 2014 FIFA World Cup had no effect on his fortunes at the club either.
After a frustrating three years, Borussia Dortmund announced he was moving back to his childhood club for a period of four years. When the move was finalised at the beginning of this transfer window, he expressed his regrets about leaving the club in the first place.
