Suwon Bluewings saw off the challenge by SAFFC to earn a win that takes the K-League side into the second round of the ACL.

The three points guarantee the two-time Asian champions will finish second in Group G, behind Japan's Kashima Antlers, and secure Cha Bum-kun's side a spot in the last 16.

Bae Ki-jong gave Suwon the lead before Aleksander Duric equalised for the Singaporeans, only for Lee Sang-ho to quickly restore his side's lead late in the half.

Seo Dong-hyun then sealed the win late in the game when he struck from the penalty spot following a foul which saw SAF goalkeeper Shahril Jantan sent off.

Suwon had the perfect start after just four minutes when Bae converted Hong Sun-hak's cross with a fine header but, with 41 minutes on the clock, the Singaporeans surprised the hosts by pulling level.

Shaiful Esah curled in a right-sided free-kick for Duric to evade the Suwon defence before heading past Lee Woon-jae.

The visitors' celebrations were short-lived as Suwon restored their lead in similar fashion.

Lee Sang-ho found space inside the area to head Kim Dae-ui's free-kick into the net with just seconds remaining in the half.

SAF continued to look a threat in the second half with John Wilkinson and Duric both going close.

But it was the home side who eventually found the back of the net again, Seo slotting home from the penalty spot after Bae was brought down by Shahril, who was sent off for his misdemeanour.