This will be their first meeting.
Chung had a poor season in 2016 and his ranking drifted almost 100 places. However towards the end of the season his form improved a great deal and he actually ended the year in strong form on hard and indoor courts. He has come through the qualifying rounds this week.
Coric had injury problems last year. He did beat Kyrgios and Nadal in Cincinnati in August but retired from his quarter final that week. He then only played 2 matches during the remainder of the season.
I’d expect Chung to be in better shape for this one having played 2 matches already.
I will wait for 2.00 before backing. He starts around 1.75.