Melbourne: Angelique Kerber extended her winning streak to 13 matches with a frustration-filled 4-6, 7-5, 6-2 victory over Hsieh Su-Wei as the 2016 champion advanced to the Australian Open quarter-finals.
Kerber overcame Hsieh's array of chip and drop shots off the Taiwanese player's unorthodox two-handed grip. At times, Kerber was frustrated with the shot selection by Hsieh, who had beaten Wimbledon champion Garbine Muguruza in the second round.
Hsieh saved two match points on her serve in the seventh game of the third set, forcing Kerber to serve out the match in the next game. She clinched the match with a forehand to the open court.
Kerber will play American Madison Keys in the quarterfinals.
Tomas Berdych booked his spot in the quarterfinals of the Australian Open for the seventh time after a 6-1, 6-4, 6-4 win over Fabio Fognini.
Berdych has been this far at Melbourne Park for seven of the last eight years. The only time he's failed to reach at least the quarters was last year when he lost in the third round to Roger Federer.
The 19-seeded Czech veteran could play Federer again in the next round if Federer wins his fourth-round match against Marton Fucsovics later on Monday.
Berdych is 6-19 against Federer and hasn't beaten the Swiss star since 2013.
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Updated Date: Jan 22, 2018 10:21 AM