Holders Liverpool will face Napoli, Salzburg and Genk in the Champions League group stage this season.
Premier League champions Manchester City were drawn alongside Shakhtar Donetsk, Dinamo Zagreb and Atalanta.
Last year’s runners-up Tottenham are in a group with five-time European Cup winners Bayern Munich, plus Olympiakos and Red Star Belgrade.
Chelsea must negotiate a group including 2019 semi-finalists Ajax, Valencia and Lille.
European heavyweights Paris St-Germain and Real Madrid were drawn together in Group A while former winners Barcelona, Borussia Dortmund and Inter Milan will all meet in Group F.
More to follow.
Group stage draw in full:
Group A: Paris St-Germain, Real Madrid, Club Bruges, Galatasaray
Group B: Bayern Munich, Tottenham, Olympiakos, Red Star Belgrade
Group C: Manchester City, Shakhtar Donetsk, Dinamo Zagreb, Atalanta
Group D: Juventus, Atletico Madrid, Bayer Leverkusen, Lokomotiv Moscow
Group E: Liverpool, Napoli, Salzburg, Genk
Group F: Barcelona, Borussia Dortmund, Inter Milan, Slavia Prague
Group G: Zenit St Petersburg, Benfica, Lyon, RB Leipzig
Group H: Chelsea, Ajax, Valencia, Lille