Man United and Arsenal play Copenhagen and Sevilla respectively
It will be an emotional night at Old Trafford later as Manchester United pay tribute to the late Bobby Charlton before the Champions League match with Copenhagen.
A wreath will be placed on his seat in the Directors' Box and there will be a minute's silence before the match.
The Group A game starts at 8pm.
The other match in that Group sees Galatasaray take on Bayern Munich from 5.45.
In Group B, Arsenal are away to Sevilla from 8pm.
The other tie in that Group involves Lens and PSV Eindhoven.
In Group C, Union Berlin play Napoli and it's Sporting Braga versus Real Madrid.
In Group D, Inter take on Red Bull Salzburg and Benfica meet Real Sociedad.

Monday Morning Sports Update
Mo Salah's Liverpool Future Could Be Decided Today
Leinster Look To Go Two From Two In The Champions Cup Tonight
Friday Morning Sports Update
Kildare's Lauren Walsh Prepare's For LPGA Tour After Winning Full Time Card
The PDC World Darts Championship Gets Underway Tonight
Reiko Ioane Starts For Leinster For The First Time Tomorrow
Rory McIlroy Among Six Nominees For The BBC's Sports Personality Of The Year