Siem Stefan de Jong is a Dutch former professional footballer who played as an attacking midfielder or striker.
Playing in the youth academies of De Graafschap and Ajax, he made his professional debut for the Amsterdam-based side and would go on to become the club's captain as they won a club-record four consecutive Eredivisie titles from 2011 to 2014.
Following a three-year spell with Premier League side Newcastle United and a loan spell with PSV Eindhoven, De Jong returned to Ajax in 2017.
His younger brother Luuk de Jong is also a professional football player, currently playing for Sevilla.
A-League Premiers 2018-2019 Sydney FC | Eredivisie 2013-2014 Ajax | Johan Cruijff Schaal 2013 Ajax | Eredivisie 2012-2013 Ajax |
Eredivisie 2011-2012 Ajax | Eredivisie 2010-2011 Ajax | KNVB Cup 2009-2010 Ajax |
2001-2005 |
2005-2007 |
2007-2014 |
2010-2013 |
2014-2017 |
2016-2017 (Loan) |
2017-2020 |
2018-2019 (Loan) |
2020 |
2017-2020 |
| |