The winger will play at the Theatre of Dreams in February, after we were paired with Real Sociedad in the first knock-out round of the competition.
But, just how much can you remember about Adnan’s stint at United, and how’s he been getting on in Spain? We have all the answers below…
ADNAN’S TIME AS A RED
The attacker joined United from Anderlecht as a youngster and spent time in our Academy set-up, before graduating in 2013 and making his senior debut in our Community Shield victory over Wigan Athletic. In the 2013/14 season, Januzaj made 35 appearances and famously netted both goals in a 2-1 win over Sunderland on his first Premier League start, as well as getting on the scoresheet in triumphs against West Ham United and Newcastle United.