 In the K League Championship Play–Off, He helped the side reach the final after beating Incheon United on penalty shootout and earning a clean sheet in the next two matches against Chunnam Dragons and Pohang Steelers.However, they lost 3–1 to Jeonbuk Hyundai Motors in the K League Championship Final and contributed to the team's 2009 K League runners-up campaign.Ahead of the 2010 season, Kim Yong-dae moved to FC Seoul and so Jung was able to keep his starting role.