Tennis Australian Open 2018 Novak Djokovic of Serbia reacts after being defeated by Hyeon Chung of of South Korea during round four on day eight of the Australian Open tennis tournament , in Melbourne , Victoria , Australia , 22 January 2018 . EPA / LUKAS COCH AUSTRALIA AND NEW ZEALAND OUT ▶ 기사 제보 및 문의 ▶ 기자 와 1 : 1 채팅    ▶ 평창동 계 올림픽 영상 공모전