Pohang Steelers went top of the K-League on Saturday with a 2-1 come-from-behind victory over Chunnam Dragons.
The Steelers fell behind in their Steelyard Stadium backyard when Sim Dong-Woon was on target for the visiting Dragons on 29 minutes.
But the hosts were level eight minutes after half-time when Hwang Jin-Sung scored, before Kim Bum-Joon hit the winner in the 81st minute.
Pohang are now clear top in South Korea on 10 points after four matches, while Dragons are dwindling in the relegation zone on one point.
The Suwon Bluewings are second after a 2-1 away win at the previously unbeaten Jeonbuk Motors.
Suwon led via goals to Kwak Hee-Ju and Seo Jung-Jin either side of the break.
A late Lee Dong-Gook penalty gave Jeonbuk hope of salvaging a point, but their efforts in the final six minutes were fruitless.
Seongnam earned their first win of the campaign with a 1-0 result away to Daegu.
Jeju United remain unbeaten in four matches after their second win of the season came at the expense of Busan l'Park 1-0.
Seoul fought back twice at home to Gyeongnam to get a 2-2 draw but were denied a breakthrough win this season.