Barca, AC Milan in same group
Defending champions Barcelona and former champions AC Milan have been drawn in the same group in the 2011/12 Champions League draw.
Barca were drawn in group H and will be joined by AC Milan, BATE Borisov and Viktoria Plzen.
In last season's draw the Serie A champions were drawn in the same group with Real Madrid.
Another Real Madrid/Lyon match is guaranteed after the teams were both drawn in group D. The other two teams in the group are Ajax and Dinamo Zagreb.
Elsewhere in the draw, English champions Manchester United will play Benfica, Basel and debutants Otelul Galati.
Arsenal will have Marseille, Olympiakos and the Bundesliga champions Borussia Dortmund in its group.
Below is the full draw:
Group A: Bayern Munich, Villarreal, Manchester City, Napoli
Group B: Inter Milan, CSKA Moscow, Lille, Trabzonspor
Group C: Manchester United, Benfica, Basel, Otelul Galati
Group D: Real Madrid, Lyon, Ajax, Dinamo Zagreb
Group E: Chelsea, Valencia, Bayer Leverkusen, Genk
Group F: Arsenal, Marseille, Olympiakos, Borussia Dortmund
Group G: Porto, Shakhtar Donetsk, Zenit St Petersburg, APOEL Nicosia
Group H: Barcelona, AC Milan, BATE Borisov, Viktoria Plzen