All games live on TNT for those in the UK. Kick off times (GMT).
Tuesday 12th December
Group A
20:00 - FC Copenhagen v Galatasaray
20:00 - Bayern Munich v Manchester United
Group B
17:45 - Lens v Sevilla
17:45 - PSV Eindhoven v Arsenal
Group C
20:00 - Napoli v SC Braga
20:00 - Union Berlin v Real Madrid
Group D
20:00 - FC Salzburg v Benfica
20:00 - Inter v Real Sociedad
Wednesday 13th December
Group E
20:00 - Atletico Madrid v Lazio
20:00 - Celtic v Feyenoord
Group F
20:00 - Borussia Dortmund v Paris Saint- Germain
20:00 - Newcastle United v AC
Milan
Group G
17:45 - FK Crvena Zvezda v Manchester City
17:45 - RB Leipzig v Young Boys
Group H
20:00 - FC Porto v Shakhtar Donetsk
20:00 - Royal Antwerp v FC Barcelona
Tuesday 12th December
Group A
20:00 - FC Copenhagen v Galatasaray
20:00 - Bayern Munich v Manchester United
Group B
17:45 - Lens v Sevilla
17:45 - PSV Eindhoven v Arsenal
Group C
20:00 - Napoli v SC Braga
20:00 - Union Berlin v Real Madrid
Group D
20:00 - FC Salzburg v Benfica
20:00 - Inter v Real Sociedad
Wednesday 13th December
Group E
20:00 - Atletico Madrid v Lazio
20:00 - Celtic v Feyenoord
Group F
20:00 - Borussia Dortmund v Paris Saint- Germain
20:00 - Newcastle United v AC
Milan
Group G
17:45 - FK Crvena Zvezda v Manchester City
17:45 - RB Leipzig v Young Boys
Group H
20:00 - FC Porto v Shakhtar Donetsk
20:00 - Royal Antwerp v FC Barcelona