Hyeon Chung reaches his first tour-level quarter-final of the year at the Rakuten Japan Open Tennis Championships on Thursday.

Felix Auger-Aliassime and Hyeon Chung pose with a photo with students from Jinhui Primary School on Monday in Chengdu.

Hyeon Chung and Felix Auger-Aliassime visit Jinhui Primary School on Monday to conduct a tennis clinic with students.

Hyeon Chung and Felix Auger-Aliassime visit Jinhui Primary School on Monday to conduct a tennis clinic with students.

Hyeon Chung rallies from two sets down against Fernando Verdasco to reach the third round at the US Open.

Hyeon Chung reaches the second round in New York for a second straight year.

Hyeon Chung lifts the trophy in Chengdu, taking the title in his first tournament back from injury.

Hyeon Chung and Kevin Anderson talk to Vijay Amritraj on Saturday ahead of the Tata Open.

Sixth seed Hyeon Chung retires with a right foot injury on Friday during his quarter-final against second seed Fabio Fognini.

Sixth seed Hyeon Chung will play Denis Kudla in the Stockholm second round after beating Taylor Fritz on Tuesday.

Hyeon Chung will look to win his first ATP World Tour title this week in Winston-Salem.

Hyeon Chung beats Jack Sock in three sets at the Western & Southern Open on Tuesday.

South Korea's Hyeon Chung returns for the first time in more than two months at the BB&T Atlanta Open.

Hyeon Chung fends off #NextGen ATP American Taylor Fritz in straight sets in the second round in Atlanta.

South Korea's Hyeon Chung has fun during an activity at the BB&T Atlanta Open.

Hyeon Chung will begin his campaign at the BB&T Atlanta Open against Newport runner-up Ramkumar Ramanathan or #NextGenATP Taylor Fritz.

South Korean Hyeon Chung enjoys meeting with Atlanta United goalkeeper Alec Kann ahead of the BB&T Atlanta Open.

Third-seeded Hyeon Chung is making his first tour-level appearance in two months at the BB&T Atlanta Open.

Chris Kermode, ATP Executive Chairman & President, discusses innovations for the Next Gen ATP Finals.

Hyeon Chung, winner of the first Next Gen ATP Finals in 2017, feels his "win in Milan will always be very special to me.”

Hyeon Chung, winner of the first edition of the Next Gen ATP Finals, looks on as Angelo Binaghi, President of the Italian Tennis Federation, details advancements to this year's event.

Hyeon Chung reaches the Munich semi-finals for the second year in a row after beating former champion Martin Klizan on Friday.

Hyeon Chung beats Matthias Bachinger in 58 minutes to advance to the BMW Open by FWU quarter-finals on Wednesday.

Neville Godwin has helped Hyeon Chung reach another quarter-final this year at the Miami Open presented by Itau.

Hyeon Chung blasts into the fourth round in Miami.