#1 Ousmane Dembele (Barcelona vs Borussia Dortmund)
Ousmane Dembele needed just a solitary season at Borussia Dortmund to turn heads in his direction. In the 2016/17 season, he pocketed 10 goals and 21 assists as a teenager. That bumper season was enough to help him seal a €125 million move to Barcelona. His first season was marred by injuries but he showed glimpses of his talent in his second season.
The World Cup winner won the DFB Pokal with Dortmund and in his 2 seasons with the Blaugrana, he has won the La Liga twice. His present club, Barcelona has been drawn in the same group as the Bundesliga side and it could be a tight contest between two world-class clubs.
However, the 22-year old faces a race against time to be fit for Barcelona's game at Dortmund. He would have loved to play in Germany again and will be disappointed if he fails to be fit for that game. While he may or may not feature in that game, he would still have a chance to play against them at the Camp Nou.
Honorable mentions: Paco Alcacer (Borussia Dortmund vs Barcelona), Mario Mandzukic (Juventus vs Atletico Madrid), Fernandinho (Manchester City vs Shakhtar Donetsk), Keylor Navas (PSG vs Real Madrid)