Thai League 1 champions Buriram United need a home win against Japan's Ventforet Kofu on Tuesday to stand any chance of reaching the AFC Champions League knockout stage.
In the other Group H game, Melbourne City host China's Zhejiang.
There is still everything to play for in the final round of matches in Group H.
After five games, Kofu and Melbourne each have eight points, ahead of Buriram and Zhejiang who each have six.
Five group winners plus three best runners-up advance to the quarter-finals of the East zone.
Japan's Ventforet are attempting to become the first second division side to advance to the knockout round of the continental showpiece but can expect a tough test from Buriram.
A win for Buriram will see them leapfrog their Japanese opponents.
Buriram pulled themselves back in the race with a stunning 1-0 away win against Melbourne in their fourth match, only to suffer a 3-2 defeat to China's Zhejiang two weeks ago.
Ventforet's hopes suffered a setback following their 3-3 draw with Melbourne, with the Japanese side needing a late goal to salvage a point.
Ventforet have to win against Buriram as 11 points may just be enough to advance as one of the three best runners-up should Melbourne top the group.
Buriram will be without three players, who face lengthy bans for their roles in a brawl after their loss at Zhejiang.
The trio are Ramil Sheydayev, who has been suspended for eight games in the ACL, and Leon James and Chitipat Tanklang, who each received a six-game ban.
The Thunder Castle are fresh from their 4-1 win against Nakhon Pathom in Thai League 1 at the weekend. They got their first league victory in six games thanks to two goals each from Peeradon Chamratsamee and Supachai Chaided.
Meanwhile, Malaysian champions Johor Darul Ta'zim and Thailand's BG Pathum United will be playing for pride when they meet in Group I on Tuesday.
Pathum will be trying to get their first point of the campaign.
In the other Group I game, South Korea's Ulsan (nine points) host Japan's Kawasaki Frontale (15 points) who have already booked a place in the next round.
