[1] He started his professional career with Dutch Eerste Divisie side Helmond Sport and joined Roda JC in the summer of 2006.

Bundesliga securing automatic promotion to top flight soccer, finishing several points behind Hertha BSC.

[15] However, when questioned by media, Fury manager Paul Dalglish stated that he was doubtful that the club would be able to afford de Jong.

[16] On 22 June 2016, Dalglish stated that he had made de Jong "his best possible offer" and that it was up to the player as to whether or not he would accept it and stay in Ottawa or sign elsewhere.

[20] The next month on 15 March, Pacific FC revealed de Jong suffered a ruptured Achilles tendon in training, sidelining him for the season.

[24] In the summer of 2005, De Jong played for the Canadian U-20 national team at the 2005 FIFA World Youth Championship in the Netherlands.

[citation needed] He made his senior debut for Canada in a November 2007 friendly match against South Africa.

De Jong was selected for his second consecutive Gold Cup in May 2011, Canada failed to exit the group stage with a 1–1–1 record.