In the competition tonight, champions Manchester City are away to Young Boys in Group G from 8pm.
The other game in that Group is between RB Leipzig and Red Star Belgrade.
Newcastle United host Borussia Dortmund in Group F at St James' Park from 8, with PSG to play AC Milan in the other Group game.
Also at 8 o'clock, it's Celtic up against Atletico Madrid in Glasgow in Group E - with the other tie in that Group involving Feyenoord and Lazio.
In Group H, Barcelona play Shakhtar Donetsk and Royal Antwerp face FC Porto at 5:45pm.
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