Melbourne | Zheng comes from a set down to eliminate Kalinskaya
The last seed left standing in the top half of the Australian Open draw, Zheng Qinwen of China, came back from a set down to defeat Anna Kalinskaya of Russia, 6-7(4) 6-3 6-1, to reach the semi-finals of a Grand Slam singles for the first time in her career. At the beginning of the first…