Spurs have been paired with Anzhi Makhachkala, Sheriff Tiraspol of Moldova and the Norwegian side Tromso in Group K of the Europa League.
Swansea City are in Group A with Valencia, the Russian side Kuban Krasnodar and Swiss team St Gallen.
And Wigan Athletic will play Rubin Kazan, Maribor from Slovenia and Belgian side Zulte Waregem in Group D.