Jeong scored in the 14th and 30th minutes before an own goal from Chunnam's Yuta Baba gave Daejeon a lifeline.

The visitors' hopes of victory were snuffed out in the 55th minute, however, when Sim Dong-Woon hit the back of the net for the Dragons.

In other results, Daegu defeated Gwangju 2-0 thanks to goals from In Jun-Yeon and Choi Ho-Jung, while Baek Jong-Hwan scored the winner as Gangwon won 1-0 away to Seongnam.

Sangju Sangmu have already been relegated from the division.