article_snippet: The 20-year-old, who joined the Blues in the summer of 2011, has made 11 Chelsea first-team appearances, including games in the Champions League and was an unused substitute in the 2015 Capital One Cup final win over Tottenham.
article_snippet: 20-year-old has made 11 first-team appearances for Chelsea since joining the club in the summer of 2011 .
highlights_snippet: Dutch Under 21 international joined the Blues in the summer of 2011 .
  