1 SIEM De Jong was actually born in Aigle, Switzerland, moving to Holland at the age of six with his Dutch parents.
2 He graduated from the same school as Guus Hiddink, Paul Bosvelt and Klaas-Jan Huntelaar.
3 Siem is the Dutch short term for Simon.
4 He has Luiz Suarez’ phone number, having played alongside the Uruguayan at Ajax.
5 In 2012, De Jong was asked to pick his World XI for FIFPro. Asked which of his choices he would like to play alongside he said: “All of them.”
6 De Jong was a member of the Dutch players’ Union WCS with his brother Luuk.
7 He cites Jari Litmanen and Dennis Bergkamp as his favourite players growing up.
8 Asked in 2012, which country he would like to play in. He said Spain “because of the weather and the beach”. Oh well....
9 At the start of last season, he suffered a collapsed lung, one of five injuries he had during 2013/14.
10 De Jong has never been sent off in his career.