AFC Champions League – Group Stage (East Region, Matchday 4)

2-4 July 2021

Johor Darul Tazim – Pohang Steelers
Referee: Ma Ning (CHN, photo)
Assistant Referee 1: Cao Yi (CHN)
Assistant Referee 2: Zhou Fei (CHN)
Fourth Official: Ammar Mahfoodh (BHR)

Nagoya Grampus – Ratchaburi FC
Referee: Turki Al Khudayr (KSA)
Assistant Referee 1: Mohammed Al Abakry (KSA)
Assistant Referee 2: Khalaf Al Shammari (KSA)
Fourth Official: Omar Al Yaqoubi (OMA)

Port FC – Cerezo Osaka
Referee: Nawaf Shukralla (BHR)
Assistant Referee 1: Mohamed Salman (BHR)
Assistant Referee 2: Abdulla Al Rowaimi (BHR)
Fourth Official: Ali Al Qaysi (IRQ)

Kitchee SC – Guangzhou FC
Referee: Khamis Al Marri (QAT)
Assistant Referee 1: Ramzan Al Naemi (QAT)
Assistant Referee 2: Alisher Usmanov (UZB)
Fourth Official: Bijan Heidari (IRN)

Tampines Rovers – Jeonbuk Motors
Referee: Masoud Tufaylieh (SYR)
Assistant Referee 1: Andrey Sapenko (UZB)
Assistant Referee 2: Timur Gaynullin (UZB)
Fourth Official: Yu Ming-Hsun (TPE)

Gamba Osaka – Chiangrai United
Referee: Amirul Yaacob (MAS)
Assistant Referee 1: Yusri Mohamad (MAS)
Assistant Referee 2: Zhang Cheng (CHN)
Fourth Official: Mohammed Al Hoish (KSA)

Ulsan Hyundai – Kaya Iloilo
Referee: Omar Al Yaqoubi (OMA)
Assistant Referee 1: Mohammed Al Abakry (KSA)
Assistant Referee 2: Khalaf Al Shammari (KSA)
Fourth Official: Turki Al Khudayr (KSA)

Viettel FC – Pathum United
Referee: Ryuji Sato (JPN)
Assistant Referee 1: Hiroshi Yamauchi (JPN)
Assistant Referee 2: Jun Mihara (JPN)
Fourth Official: Hussein Yehia (LBN)

United City – Kawasaki Frontale
Referee: Omar Al Ali (UAE)
Assistant Referee 1: Abu Al Amri (OMA)
Assistant Referee 2: Rashid Al Ghaithi (OMA)
Fourth Official: Ahmed Al Kaf (OMA)

Beijing FC – Daegu FC
Referee: Nivon Robesh (SRI)
Assistant Referee 1: Thanet Chuchuen (THA)
Assistant Referee 2: Abduxamidullo Rasulov (UZB)
Fourth Official: Hasan Akrami (IRN)