Johor Darul Ta'zim are through to the AFC Champions League knockout round for the first-time ever, after a dramatic 94th-minute own-goal handed them a 2-1 victory over Ulsan Hyundai to advance as Group I winners.
The Southern Tigers got off to a dream start when they took the lead after just five minutes, after Leandro Velazquez lined up a freekick almost 30 yards out and proceeded to find the top corner with a stunning effort.
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But barely a minute later, Ulsan equalised when JDT's failure to clear their lines allowed Jun Amano to pounce on a loose ball just inside the area and power an unstoppable drive off Farizal Marlias' despairing diving arm and into the back of the net.
There was then controversy in the 25th minute when JDT looked to have reclaimed the lead through a close-range finish by Fernando Forestieri only for it be ruled out for offside, although replays suggested the goal should have stood.
JDT were left further aggrieved early on in the second half when Arif Aiman looked to have been felled inside the area but their penalty claims were waved away.
As the game entered its closing stages, it began to look as though JDT would be cruelly denied a place in the last-16 as they were just unable to find the all-important winner - with Ramadhan Saifullah forcing Ulsan goalkeeper Jo Hyeon-woo into a superb save while Safawi Rasid could only watch on as his rasping drive came back off the foot of the post.
Then, into the fourth minute of injury-time, Arif's determination to keep the ball alive in the opposition area eventually saw him drill a low ball across the face of goal, where the luckless Park Yong-woo's attempt to intercept only resulted in him prodding the ball past his own goalkeeper to hand JDT the most dramatic of wins.
The result also means Ulsan have been eliminated by finishing third, while Kawasaki Frontale -- who were on course to advance with a 1-0 win over Guangzhou until Park's intervention -- will have to wait to find out if they will advance as one of the best runners-up.