#3 Mario Gotze
The 5'9 midfielder, who was the obvious reason behind the success of Germany's 2014 FIFA World Cup Campaign, joined Bayern Munich when Pep Guardiola took over in 2013. With a versatile play style and an eye for goal, Gotze was considered as being one of the best young players in the world. With his tenure with Borussia Dortmund, winning the Bundesliga title back in 2012, the German International had experienced success in the early 2010s.
However, post-World Cup, the 'German Messi' wasn't quite doing what he was known to do. He joined Borussia Dortmund again in 2016 and wasn't quite delivering the kind of performance we'd expect him to deliver. Many said that the World Cup success exaggerated his talent and pressurized him to the limit, but certainly, that was not the case as he still continues to play.
After not being picked up for his international side on multiple occasions, Gotze's tenure is said by many to be finished. As he too fades away with time.