Lee Yong-dae is a professional badminton player from South Korea who had been successful in both men's and mixed doubles. He reached world number 1 ranking with 4 different partners, Jung Jae-sung, Ko Sung-hyun and Yoo Yeon-seong in men's doubles, and Lee Hyo-jung in mixed doubles

Yoo Yeon-seong is a South Korean professional badminton player. He specializes in doubles events and was ranked as high as No. 2 worldwide with his former partner, Ko Sung-hyun. Starting in late 2013, his men's doubles partner was Lee Yong-dae. Together, they reached a world ranking of No.1 in August 2014

This video was taken from spectator bench on Yonex US open 2019 Quarter Finals against Chinese Taipei Lee Jhe-huei and Yang Po-hsuan. The match was won by the Korean with score 12-21, 21-19 and 21-17

Here is the full video
   • LEE Yong Dae/ YOO Yeon Seong VS LEE J...