[7] In the winter break of the 2011–12 season, Nam agreed to leave Ligue 1 for Qatar Stars League club Lekhwiya SC on 26 December 2011.

He appeared as a substitute as Korea beat Japan in the bronze medal match at Cardiff's Millennium Stadium.

[17] On 22 December 2014, Nam was named in South Korea's squad for the 2015 AFC Asian Cup held in Australia.

[18] In the team's second group match, Nam scored the only goal as Korea defeated Kuwait 1–0 to ensure qualification to the knockout stage.

[19] On 20 November 2018, it was announced that Nam would miss the 2019 AFC Asian Cup in the UAE after being ruled out for six months because of a knee injury.

[7] Nam became the youngest Korean footballer to play in a professional league in Europe as a result of this game.