Nainggolan playing for Belgium in 2009
|Date of birth||4 May 1988|
|Place of birth||Antwerp, Belgium|
|Height||1.75 m (5 ft 9 in)|
|Current club||Roma (on loan from Cagliari)|
|2010||→ Cagliari (loan)||7||(0)|
|2014–||→ Roma (loan)||6||(1)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 05:33, 6 March 2014 (UTC).
† Appearances (Goals).
Nainggolan was born in Antwerp, the son of Lizy Bogaerts, a Belgian of Flemish ethnicity who raised him with his three half brothers and his twin sister, and Marianus Nainggolan, an Indonesian of Batak background member of the Batak Christian Protestant Church who left them with nothing when he was just a child.
Nainggolan's mother died in 2010, and after her death he tattooed two large wings on his back with her dates of birth and death. He was raised Roman Catholic and speaks Dutch, English and Italian fluently, as well as understanding French.
Nainggolan arrived at Piacenza Calcio in late 2005 at the age of 17, from local K.F.C. Germinal Beerschot. Still a junior he managed to appear in two Serie B games for the club, over the course of two separate seasons.
Nainggolan played 38 matches in the 2008–09 campaign for the Emilia-Romagna outfit, scoring three goals for an eventual 10th-place finish. On 27 January 2010 he was loaned to Cagliari Calcio in Serie A, with the Sardinians having an option to buy the player permanently at the end of the season. He made his league debut on 7 February, playing seven minutes in a 0–3 away loss against Inter Milan.
However, on 7 January of the following year, Nainggolan was loaned to fellow league club A.S. Roma until the end of the campaign for a fee of €3 million, with an option for Roma to make the deal permanent in the ensuing summer for €6 million.
Nainggolan made his debut for his new team on 9 January 2014, starting in a 1–0 home win over U.C. Sampdoria for the season's Coppa Italia, which qualified the club to the quarterfinals. In the same competition, he also helped dispose of Juventus F.C. in said stage by playing the full 90 minutes 12 days later.
- Scores and results list Belgium's goal tally first.
|1.||5 March 2014||King Baudouin, Brussels, Belgium||Ivory Coast||
- "Tottenham incar Radja Nainggolan" [Tottenham wants Radja Nainggolan] (in Indonesian). Tempo. 12 June 2013. Retrieved 8 January 2014.
- "Radja Nainggolan diincar klub besar Eropa" (in Indonesian). Ganlob. 16 June 2013. Retrieved 8 January 2014.
- "Radja Nainggolan bangga bermarga Batak" (in Indonesian). Mahasiswa Batak. June 2013. Retrieved 8 January 2014.
- "La GdS racconta Nainggolan: cresciuto senza padre, salvato dalla madre" [GdS tells of Nainggolan: grown up without a father, rescued by mother] (in Italian). Il Vero Milanista. 29 December 2013. Retrieved 8 January 2014.
- "Grave lutto per Nainggolan" [Serious mourning for Nainggolan] (in Italian). Tutto Cagliari. 19 October 2010. Retrieved 8 January 2014.
- "5 cose da sapere su Radja Nainggolan" [5 things you should know about Radja Nainggolan] (in Italian). Squer. 7 January 2014. Retrieved 8 January 2014.
- "Radja Nainggolan, serramannese d’adozione" [Radja Nainggolan, serramannese by adoption] (in Italian). A Serramanna. 11 May 2011. Retrieved 8 January 2014.
- "Sorpresa Nainggolan: 'A Firenze meglio che a Lecce'" [Surprise Nainggolan: 'Better in Florence than Lecce'] (in Italian). Calcio Mercato. 3 December 2010. Retrieved 8 January 2014.
- Nainggolan: "Vengo per migliorare" – "La Serie A è un sogno" (Nainggolan: "I come to improve" – "Serie A is a dream"); Cagliari's official website, 27 January 2010 (Italian)
- Internazionale 3–0 Cagliari; ESPN Soccernet, 7 February 2010
- "È Nainggolan il re dei contrasti" [Nainggolan is the king of tackles] (in Italian). Cagliari News 24. 29 May 2013. Retrieved 7 January 2014.
- "Cagliari, Nainggolan: rinnovo e scaramanzia per allontanare le big" [Cagliari, Nainggolan: renewal and good luck to stave off the big] (in Italian). Tutto Mercato Web. 5 October 2013. Retrieved 7 January 2014.
- "Radja Nainggolan" (PDF) (in Italian). A.S. Roma. 7 January 2014. Retrieved 7 January 2014.
- Nainggolan coming to Roma; UEFA, 7 January 2014. Retrieved 31 January 2014.
- "Coppa Italia, Roma-Sampdoria 1–0, decide Torosidis: c'è la Juventus nei quarti" [Italian Cup, Roma-Sampdoria 1–0, Torosidis decides it: it's Juventus in last-eight] (in Italian). La Gazzetta dello Sport. 9 January 2014. Retrieved 13 February 2014.
- "Roma-Juventus 1–0: Vendetta servita, Gervinho manda la Lupa in semifinale" [Roma-Juventus 1–0: Revenge served, Gervinho sennds Lupa to semifinals] (in Italian). Goal.com. 21 January 2014. Retrieved 13 February 2014.
- Kirin Cup: De Laet , Kitoko et Nainggolan aussi (Kirin Cup: De Laet, also Kitoko and Nainggolan); DH, 27 May 2009 (French)
- Stats at Tutto Calciatori (Italian)
- National team data
- Radja Nainggolan at National-Football-Teams.com