Jeonbuk Motors had a Lee Dong-gook brace to thank for Tuesday's 3-0 win over Vietnamese champions Binh Duong in the AFC Champions League.
Lee, making his first start since September after suffering with a calf problem, scored his first goal for the Korean champions since October four minutes from the interval, adding to Eninho's well-taken 16th-minute opener.
While Moses Oloya should have reduced the deficit when he headed wide prior to the hour mark, veteran Lee ensured Jeonbuk's unbeaten run in the competition was extended to three matches.
It also kept Choi Kang-hee's men top of Group E - above Kashiwa Reysol on goal difference after the J-League side edged past Shandong Luneng 2-1 thanks to a late Naoki Wako winner.
Wako headed home two minutes from time to keep Kashiwa level with the leaders, after Walter Montillo had cancelled out Kosuke Taketomi's opener at the Kashiwa Hitachi Stadium.
Al Sadd moved top of Group C in style as they hammered Lokomotiv Tashkent 6-2 in Doha.
Khalfan Ibrahim scored twice with Hassan Khalid, Nadir Belhadj, Abdelkarim Hassan and Grafite also among the goals as the Qatari side picked up their first win of the competition.
Late goals from Pablo Batalla and Yu Dabao helped Beijing Guoan maintain their 100 per cent record at Urawa Reds' expense.
Guoan are yet to concede in Group G and appear almost certain to progress, while in Group F, Hwang Ui-jo's first-half strike gave former continental champions Seongnam a 1-0 win over debutants Guangzhou R and F.
Hwang scored for a second Champions League game running to send his side top of the pool, ahead of Buriram United's clash with Gamba Osaka on Wednesday.
Al Nassr eased past Persepolis thanks to goals from Adrian Mierzejewski, Fabian Estoyanoff and Hassan Al Raheb while Lekhwiya picked up their first win of Group A - a 1-0 victory at Bunyodkor.
Foolad's clash with Al Hilal ended goalless.