The Saudi Arabian side, who finished as runners-up in last year's competition, face Korean opposition for the first time since losing to Ulsan Hyundai in the 2012 final.

Pereira took over from Serbian Aleksandar Ilic earlier in the month, and the former Porto boss will hope that his new charges have the tools to come through a tough encounter with the K.League champions, who are aiming to become the fifth Korean club to lift the trophy since 2006.
Marcello Lippi's Guangzhou Evergrande meet two-time Qatari champions Lekhwiya.
Top scorer Muriqui will be hoping to add to his tally of six goals for the Chinese Super League leaders, while ex-Borussia Dortmund striker Lucas Barrios also poses a significant danger to the Lekhwiya defence.
Iranian side Esteghlal meet Thai Premier League side Buriram United, who will be out to continue their historic run after becoming the first club from Thailand to reach the knock-out stage since BEC Tero Sasana in 2003.
The other quarter-final match-up sees Japan's Kashiwa Reysol meet Al Shabab.
The first leg of the quarter-finals will be held on August 21, with the reverse fixtures set to take place on September 18.