Watch fourth seed Juan Martin del Potro and rising Korean Hyeon Chung as they went head-to-head for a place in the third round of the Western and Southern Open.
Hyeon Chung v Juan Martin del Potro
Replay
Cincinnati
2018R2R2
Watch fourth seed Juan Martin del Potro and rising Korean Hyeon Chung as they went head-to-head for a place in the third round of the Western and Southern Open.
