Arsenal and Manchester City have both found themselves in tricky groups after today's Champions League draw.
Arsenal have been drawn against Bayern Munich, Olympiakos and Dinamo Zagreb in Group F, while Group D sees Manchester City facing Juventus, Sevilla and Borussia M’gladbach.
By contrast, Chelsea and Manchester United will both expect to progress with relative ease.
Chelsea were the top seeds in Group G and will take on FC Porto, Dynamo Kiev and Maccabi Tel-Aviv.
Manchester United have been placed in Group B with PSV Eindhoven, CSKA Moscow and Wolfsburg.
The draw for the UEFA Champions League group stage is as follows:
Group A Paris Saint-Germain Real Madrid Shakhtar Donetsk Malmo FF
Group B PSV Eindhoven Manchester United CSKA Moscow Wolfsburg
Group C Benfica Atletico Madrid Galatasaray FC Astana
Group D Juventus Manchester City Sevilla Borussia M’gladbach
Group E Barcelona Bayer Leverkusen Roma BATE Borisov
Group F Bayern Munich Arsenal Olympiacos Dinamo Zagreb
Group G Chelsea FC Porto Dynamo Kiev Maccabi Tel-Aviv
Group H Zenit St. Petersburg Valencia Lyon KAA Gent