MELBOURNE (Reuters) -Zheng Qinwen shook off a sluggish start to outclass Russian Anna Kalinskaya 6-7(4) 6-3 6-1 on Wednesday and reach the semi-finals of the Australian Open for the first time where the Chinese 12th seed will take on Ukrainian qualifier Dayana Yastremska.
Kalinskaya appeared nervous in her first Grand Slam quarter-final as she gifted the opening break of the match with a double fault but Zheng returned the favour immediately and the duo were locked until the tiebreak after more shaky displays on serve.
