First Leg, 2-3 October 2018Kashima Antlers – Suwon Bluewings
Referee: Nawaf Shukralla (BHR, photo)
Assistant Referee 1: Yaser Tulefat (BHR)
Assistant Referee 2: Nawaf Mousa (BHR)
Additional AR 1: Ali Sabah (IRQ)
Additional AR 2: Turki Al-Khudhayr (KSA)
Fourth Official: Mohd Muhamad (MAS)
Al Sadd – Persepolis
Referee: Hettikamkanamge Perera (SRI)
Assistant Referee 1: Priyanga Palliya (SRI)
Assistant Referee 2: Palitha Hemathunga (SRI)
Additional AR 1: Nivon Gamini (SRI)
Additional AR 2: Rowan Arumughan (SRI)
Fourth Official: Premalal Wellabada (SRI)
Second Leg, 23-24 October 2018
Persepolis – Al Sadd
Referee: Valentin Kovalenko (UZB)
Assistant Referee 1: Husniddin Shodmonov (UZB)
Assistant Referee 2: Timur Gaynullin (UZB)
Additional AR 1: Ilgiz Tantashev (UZB)
Additional AR 2: Aziz Asimov (UZB)
Fourth Official: Ruslan Serazitdinov (UZB)
Suwon Bluewings – Kashima Antlers
Referee: Mark Geiger (USA)
Assistant Referee 1: Joe Fletcher (CAN)
Assistant Referee 2: Frank Anderson (USA)
Additional AR 1: Mohanad Sarray (IRQ)
Additional AR 2: Adham Makhadmeh (JOR)
Fourth Official: Ahmad Al-Roalle (JOR)