Briton Cameron Norrie has been beaten in the first round of the Delray Beach Open by Hyeon Chung.

The 22-year-old looked like he might cause an upset against last month’s Australian Open semi-finalist when he took the opening set.

However, Chung fought back to level the match and an utterly dominant display in the deciding set saw the South Korean win 3-6 6-3 6-1.