The clubs will battle for a spot in the group stages of Europe's premier club competition.
The other match-ups sees Napoli versus Nice, Seville vs Istanbul Basaksehir, CSKA Moscow vs Young Boys of Switzerland, Sporting CP vs Steaua Bucharest, Celtic vs Astana, Olympiacos vs Rijeka and Slavia Prague vs APOEL of Cyprus.
The first legs are scheduled for August 15-16, with the return duels on August 22-23.
In the Europa League play-offs, AC Milan were paired with Macedonian side Shkendija, Ajax Amsterdam will face Rosenborg, Everton will meet Hajduk Split, Marseille will tackle Domzale, while Roberto Mancini's Zenit will collide with Utrecht.
The ties will take place on August 17 and 24.