Tennis Australian Open 2018 Tennys Sandgren of the USA in action during his fourth round match against Dominic Thiem of Austria 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