Man City gets Bayern, CSKA again
English Premier League champions Manchester City drew Bayern Munich and CSKA Moscow again after having the same teams last season.
The fourth team in that group is last seasons Serie A runners up AS Roma.
Defending champions Real Madrid were drawn to play Liverpool, Basel and Ludogorets Razgrad in Group B.
The runners up from last season and La Liga champions Atletico Madrid will face Serie A champions Juventus, Greek Super League champions Olympiakos and Swedish Allsvenskan champions Malmo.
This is the rest of the draw:
Atlético Madrid, Juventus, Olympiakos, Malmo FF
Real Madrid, Basel, Liverpool, Ludogorets
Benfica, Zenit St. Petersburg, Bayer Leverkusen, Monaco
Arsenal, Borussia Dortmund, Galatasaray, Anderlecht
Bayern Munich, Man City, CSKA Moscow, Roma
Barcelona, PSG, Ajax Amsterdam, Apoel Nicosia
Chelsea, Schalke 04, Sporting, NK Maribor
FC Porto, Shakhtar Donetsk, Athletic Bilbao, BATE Borisov