Jung Jae-sung
On January 17, Lee Yong-dae successfully started the 2010 year by winning Korea Open Super Series in Seoul with Jung Jae-sung. In the final, the top seeds defeated Cai Yun and Fu Haifeng of China 21–11, 14–21, and 21–18. However, in the mixed doubles, Lee who paired with Lee Hyo-jung were subdued 13–21 and 16–21 by Chinese pair Tao Jiaming and Zhang Yawen in the first round. The same pair defeated Lee and Lee in the second round of Malaysia Open a week later without a match.