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 for Dortmund in the first half of the season, starting three times. On 12 August 2016, Januzaj agreed to join Sunderland on a season-long loan move from Manchester United, linking up with former Manchester United manager David Moyes. Januzaj made his debut the following day, coming off the bench against Manchester City in a 2–1 defeat on the opening weekend of the Premier League season. In his third game for Sunderland against Shrewsbury Town, Januzaj scored his first goal for the team, a late winner. Januzaj was sent off for two yellow cards on 18 September in a 1–0 loss