Tennis Australian Open 2018 epaselect epa 06464542 Novak Djokovic of Serbia reacts during his fourth round match against Chung Hyeon of South Korea at the Australian Open Grand Slam tennis tournament in Melbourne , Australia , 22 January 2018 . EPA / MAST IRHAM ▶ 기사 제보 및 문의 ▶ 기자 와 1 : 1 채팅    ▶ 평창동 계 올림픽 영상 공모전