Switzerland's Roger Federer reacts after winning the men's semifinal match against South Korea's Chung Hyeon at Australian Open 2018 in Melbourne, Australia, Jan. 26, 2018. Chung retired from the match due to injury. (Xinhua/Bai Xuefei)
Australian Open: Chung Hyeon retires from match due to injury
Source: Xinhua| 2018-01-26 19:23:05|Editor: ZD