He played his first match for Romania in 2010, being used by coach Răzvan Lucescu to replace Bogdan Lobonț in the last 7 minutes of a friendly match against Honduras which ended with a 3–0 victory.[1][2] His second game was a 1–1 against Albania at the Euro 2012 qualifiers and his last game was 2–1 loss against Algeria in a friendly.[1][3][4] He was an unused member at Euro 2016. In 2020 he announced his international retirement, after having no caps in the last 6 years.[5]
Personal life
Lung's father and older brother Tiberiu were also professional footballers.[6]