Adnan Januzaj 23 April 2014, Wilmots announced that Januzaj had committed himself to the Belgian national team. This message was confirmed the day itself by Januzaj's manager Dirk De Vriese. On 13 May 2014, Januzaj was included in Belgium's 23-man squad for the 2014 FIFA World Cup. He played a first game with the national team two weeks later in a match against Luxembourg, but he did not earn his first cap; the match was considered unofficial by FIFA on 4 June because Belgian coach Wilmots made 7 substitutions while only 6 are allowed in international friendlies. His official debut came in
Adnan Januzaj play. He made his Premier League debut a month later, coming on as a 68th-minute substitute for Ashley Young in a 2–0 home win over Crystal Palace on 14 September. On 5 October 2013, in what was his first start for the club, Januzaj scored twice as United came from behind to claim a 2–1 victory away to Sunderland. In an effort to stave off interest from other clubs, who could have signed Januzaj for "minimal compensation" on the expiry of his existing contract in June 2014, Manchester United signed Januzaj to a new five-year contract on 19 October 2013.