AFC Champions League 2021 – Round of 16

14-15 September 2021

Esteghlal FC – Al Hilal SFC
Referee: Fu Ming (CHN, photo)
Assistant Referee 1: Shi Xiang (CHN)
Assistant Referee 2: Cao Yi (CHN)
Fourth Official: Ma Ning (CHN)

FC Istiklol – Persepolis FC
Referee: Hiroyuki Kimura (JPN)
Assistant Referee 1: Hiroshi Yamauchi (JPN)
Assistant Referee 2: Jun Mihara (JPN)
Fourth Official: Jumpei Iida (JPN)

Al Nassr – Tractor FC
Referee: Kim Dae-Yong (KOR)
Assistant Referee 1: Yoon Jae-Yeol (KOR)
Assistant Referee 2: Park Sang-Jun (KOR)
Fourth Official: Ko Hyun-Jjin (KOR)

Sharjah – Al Wahda
Referee: Nawaf Shukralla (BHR)
Assistant Referee 1: Mohamed Salman (BHR)
Assistant Referee 2: Abdulla Al Rowaimi (BHR)
Fourth Official: Ammar Mahfoodh (BHR)

Nagoya Grampus – Daegu FC
Referee: Adham Makhadmeh (JOR)
Assistant Referee 1: Ahmed Al Roalle (JOR)
Assistant Referee 2: Mohammad Al Kalaf (JOR)
Fourth Official: Ahmed Al Ali (JOR)

Ulsan Hyundai – Kawasaki Frontale
Referee: Mohammed Abdulla (UAE)
Assistant Referee 1: Mohamed Al Hammadi (UAE)
Assistant Referee 2: Hasan Suqatari (UAE)
Fourth Official: Omar Al Ali (UAE)

Jeonbuk Motors – Pathum United
Referee: Mooud Bonyadifard (IRN)
Assistant Referee 1: Ali Mirzabeigi (IRN)
Assistant Referee 2: Saeid Ghasemi (IRN)
Fourth Official: Hasan Akrami (IRN)

Cerezo Osaka – Pohang Steelers
Referee: Abdulrahman Al Jassim (QAT)
Assistant Referee 1: Taleb Al Marri (QAT)
Assistant Referee 2: Saoud Al Maqaleh (QAT)
Fourth Official: Khamis Al Marri (QAT)