Cho Chan-Ho and Adrian Chuva came off the bench to score as Pohang Steelers beat Ulsan Horangi 2-0, Sangju Sangmu won 1-0 at Chunnam Dragons, while Incheon United beat Gangwon FC 3-1.
Source: Subs boost Steelers, Sangju climb (http://www.fifa.com/worldfootball/clubfootball/news/newsid=1423207.html?cid=rssfeed&att=)