Napoli (Italy) v Nice (France)
Hoffenheim (Germany) v Liverpool (England)
Qarabag (Azerbaijan) v FC Copenhagen (Denmark)
Apoel Nicosia (Cyprus) v Slavia Prague (Czech Republic)
Young Boys (Switzerland) v CSKA Moscow (Russia)
Sporting Lisbon (Portugal) v Steaua Bucharest (Romania)
Olympiakos (Greece) v HNK Rijeka (Croatia)
Celtic (Scotland) v Astana (Kazakhstan)
Hapoel Beer Sheva (Israel) v Maribor (Slovenia)
Istanbul Basaksehir (Turkey) v Sevilla (Spain)
NOTE: The first legs come up on 15/16 August, with the return legs taking place on 22/23 August.
The 10 winners from the play-off stage will join the 22 teams who have already qualified for the group stage.
Defeated teams at the play-off round enter the Europa League group stage auomatically.