Tractor FC of the Islamic Republic of Iran finished as the Group A winners with Qatar's Al Wakrah SC the runners-up.

Saudi Arabia's Al Taawoun FC were the runaway winners in Group B, finishing with 15 points - three ahead of Bahrain's Al Khaldiya SC.

UAE's Sharjah FC were the Group C winners, amassing 13 points with Jordan's Al Wehdat two adrift in second place.

Shabab Al Ahli were the second team from UAE to advance after topping Group D with 13 points, three clear of Jordan's Al Hussein.

The West Zone's last 16 action will see Bahrain's Al Khaldiya meeting Tractor FC of Iran while Al Wakrah of Qatar will face Saudi Arabia's Al Taawoun.

Al Wehdat of Jordan and UAE's Shabab Al Ahli will square off while Jordan's Al Hussein take on UAE's Sharjah FC.

Japan's Sanfrecce Hiroshima easily topped Group E with 16 points, four ahead of second placed Sydney FC of Australia.

Lion City Sailors won Group F, with the Singaporean side finishing ahead of Thailand's Port FC on goal difference with both teams tied on 10 points.

Thailand's Bangkok United topped Group G ahead of Nam Dinh FC with the Thai side accumulating 13 points, two more than the team from Vietnam.

Two-time AFC Champions League™ winners Jeonbuk Hyundai Motors of Korea Republic finished on 12 points to emerge the Group H runners-up, with Thailand's Muangthon United one behind in second place.

The Round of 16 ties will see Vietnam's Nam Dinh FC facing Japan's Sanfrecce, Thailand's Muangthong United and Lion City Sailors FC of Singapore will square off, Port FC take on Korea Republic's Jeonbuk while Sydney FC of Australia meet Thailand's Bangkok United.