| 20 Apr 21 | r03     | Al WahdaAl Wahda | 3 - 2 | Al-Rayyan SCAl-Rayyan SC |
| 20 Apr 21 | r03 | Al-Quwa Al-JawiyaAl-Quwa Al-Ja | 0 - 0 | Tractor SaziTractor Sazi |
| 20 Apr 21 | r03 | PersepolisPersepolis | 2 - 1 | GoaGoa |
| 20 Apr 21 | r03 | Al SharjahAl Sharjah | 4 - 1 | PakhtakorPakhtakor |
| 20 Apr 21 | r03 | Al-SaddAl-Sadd | 3 - 1 | Al-WehdatAl-Wehdat |
| 20 Apr 21 | r03 | Foolad FCFoolad FC | 1 - 1 | Al Nassr FCAl Nassr FC |
| 21 Apr 21 | r03 | Al-Duhail SCAl-Duhail SC | 4 - 3 | EsteghlalEsteghlal |
| 21 Apr 21 | r03 | Al HilalAl Hilal | 3 - 1 | IstiklolIstiklol |
| 21 Apr 21 | r03 | OlmaliqOlmaliq | 2 - 1 | Shabab Al-Ahli DubaiShabab Al-Ahl |
| 21 Apr 21 | r03 | Al-Shorta SCAl-Shorta SC | 0 - 3 | Al-Ahli Saudi FCAl-Ahli Saudi |
| 28 Jun 21 | r03 | RatchaburiRatchaburi | 0 - 4 | Nagoya GrampusNagoya Grampu |
| 28 Jun 21 | r03 | Pohang SteelersPohang Steele | 4 - 1 | Johor Darul TazimJohor Darul T |
| 30 Jun 21 | r03 | Cerezo OsakaCerezo Osaka | 1 - 1 | Port FCPort FC |
| 30 Jun 21 | r03 | Guangzhou EvergrandeGuangzhou Eve | 0 - 1 | KitcheeKitchee |
| 01 Jul 21 | r03 | Jeonbuk Hyundai MotorsJeonbuk Hyund | 9 - 0 | Tampines RoversTampines Rove |
| 01 Jul 21 | r03 | Chiangrai UnitedChiangrai Uni | 1 - 1 | Gamba OsakaGamba Osaka |
| 02 Jul 21 | r03 | Kaya FC–IloiloKaya FC–Iloil | 0 - 3 | Ulsan Hyundai FCUlsan Hyundai |
| 02 Jul 21 | r03 | Kawasaki FrontaleKawasaki Fron | 8 - 0 | Ceres–NegrosCeres–Negros |
| 02 Jul 21 | r03 | Daegu FCDaegu FC | 5 - 0 | Beijing GuoanBeijing Guoan |
| 02 Jul 21 | r03 | BG Pathum UnitedBG Pathum Uni | 2 - 0 | ViettelViettel |
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