Manchester United have been drawn in group H of the Champions League along with Juventus, Valencia, Young Boys.
Juventus won Serie A for the sixth season in a row last season, Valencia finished fourth (three points behind Real Madrid) in La Liga, while Young Boys are the Swiss Super League champions.
The group stages will see Paul Pogba play against his former club, Juve, and Andreas Pereira face the team he spent last season on loan playing for Valencia.
Group A: Atletico Madrid, Dortmund, Monaco, Club Brugge
Group B: Barcelona, TOTTENHAM, PSV, Inter Milan
Group C: PSG, Napoli, LIVERPOOL, Red Star Belgrade
Group D: Lokomotiv Moscow, Porto, Schalke, Galatasararay
Group E: Bayern Munich, Benfica, Ajax, AEK Athens
Group F: MAN CITY, Shakhtar, Lyon, Hoffenheim
Group G: Real Madrid, Roma, CSKA Moscow, Viktoria Plzen