With Thai Son Nam of Vietnam having defeated Iraq’s Naft Al Wasat earlier on Sunday, AGMK only needed a draw against Al Rayyan to progress but they sealed their knockout stage berth with a win after overcoming a spirited Al Rayyan in an exciting tie.

They will face Group A winners Port FC of Thailand in the quarter-finals.

Naft Al Wasat, down 2-0 and then 4-2, drew level at 4-4 only for Thai Son Nam to twice hit them on the break to seal the three points. The Vietnamese side will play China PR's Shenzhen Nanling Tielang FC in the last eight.

Thai Son Nam, having won their two earlier matches, only needed a draw to confirm their knockout stage spot while Naft Al Wasat needed the three points - having lost to AGMK FC - to keep their hopes alive.

Both advanced with a match to spare after wins in their Group C ties on Saturday and will square off on Monday to decide the group winners.

Ahmad Kheir El Dine scored a hat-trick, while Suphawut Thueanklang added a double as Bank of Beirut overwhelmed Soro Company 7-2 at the Bangkok Arena.

Bank of Beirut lead the standings, while Vamos, who had a slow start before defeating Victoria University College 3-0, are second on goal difference.

Al Rayyan battled for possession but found it hard against a speedy Thai Son Nam side.

The Vietnamese side had the first look at goal in the third minute when captain Tran Van Vu sent a cross deep into Al Rayyan territory but Tran Thai Huy’s glancing header just missed the target.

Naft Al Wasat, who defeated Qatar’s Al Rayyan 9-4 in their opening match, pressured AGMK early on when Salim Faisal fired his shot into the side netting following a set-piece situation.

AGMK, however, were equally adept in attack and Ikhtiyor Ropiev - who went on to score a hat-trick - forced a save from Naft Al Wasat goalkeeper Yahya Abdulnoor in the third minute with a long-range effort.

AGMK pressured the Vietnam club from the start with quick counter-attacking play which would have yielded goals if not for the alertness of Thai Son Nam custodian Ho Van Y.

Davron Choriev, Akbar Usmonov and Anaskhon Rakhmatov were a thorn in Thai Son Nam’s side as the trio controlled play in their attacking half.

Naft Al Wasat took time in settling into the match as Al Rayyan enjoyed the early advantage with two chances in the opening minutes.

Al Rayyan’s Said Albulushi was left unmarked on the right flank but his effort in the first minute failed to find the target and he wasted another opportunity to score two minutes later from a similar position.