#3 Kevin de Bruyne
Kevin de Bruyne will always be the one that got away for Chelsea as the Blues sold one of the EPL's current most exciting talents to Wolfsburg back in January of 2014 for just £18 million.
The Belgian international had struggled to get game-time at Chelsea but proved critics wrong with a breakout 2014-15 season with the German side as he ended the season with 16 goals and 27 assists.
Soon Manchester City came calling and the former Blues star was signed for a whooping £55 million in August 2015 and has since earned a reputation as being one of world's finest, which certainly will make him a top contender for the Ballon d'Or award one day.
De Bruyne has 11 goals and 23 assists to his name already for City this season but has failed to make a major impact for the Belgian national team this season.