Aberdeen, Celtic, Hibernian and St Johnstone are all involved in the second legs of UEFA third-round qualifying matches this evening as they aim to book a play-off place.
Celtic have a 4-2 lead going into their Europa League qualifier at home to Jablonec and are on course for a meeting with AZ Alkmaar in the next round.
St Johnstone host Galatasaray at a packed McDiarmid Park after a 1-1 draw in Turkey last week. The winners will face Randers of Denmark in the play-offs.
In the Europa Conference League, Aberdeen hold a 3-2 advantage over Breidablik of Iceland going into the return match at Pittodrie. AEL Limassol or Qarabag await the winners.
Hibernian are in Croatia to play Rijeka following a 1-1 draw at Easter Road last week. Hibs will face Bohemians or PAOK if they progress this evening.