Zhang's run continues with 4th-round win over injured Keys

She is only the fourth Chinese woman to make the last eight at a grand slam and her run in Melbourne has been particularly surprising given she had contemplated giving up tennis after failing to progress beyond the first round of 14 successive majors dating back to 2008. Cool as a cucumber off the court, temperatures on it are unrivalled. Her fellow players have hugged her, congratulated her and cheered her on.

"I'm so lucky (to) play against the second seed (Simona Halep)".

China's Zhang Shuai is daring to dream she can extend her fantastic run all the way to the Australian Open title, crediting the use of compatriot Zheng Jie's "lucky locker" for her inspirational performances. "No more nervous for me because I already play six matches in this court this tournament".

"I haven't played her since three, four years now".

Angelique Kerber has advanced to the fourth round after beating Madison Brengle 6-1, 6-3.No. 7-seeded Kerber's win on Saturday makes her the highest-ranked player in the bottom half of the draw, following No. 3 Garbine Muguruza's loss earlier in the day.

"They're so proud of me, so excited and happy", she said. "I'm sure we will see a lot more of her".

Lopez knocked Isner out of the Australian Open in a five-set, third-round match at Hisense Arena in 2012.

"Before, no. But today, maybe yes", Zhang said, when asked if she believed she could win the tournament. I hope you can be lucky this year.

The rest of her game soon followed.

His voice sounding emotional at times, Raonic added: "Unfortunately in Saskatchewan in a very small community there was a shooting at a high school, so I want to take a moment and give thoughts to that community".

Muguruza misfired frequently on her groundstrokes, finishing with 32 unforced errors, and looked a bit listless throughout the match.

Zhang, who before this year's Australian Open had lost all 14 of her previous first-round matches in Grand Slam events, incredibly now finds herself in the last eight of the tournament.

The American was in trouble in the second set as she struggled to find her range with her serve and backhand. "But, yeah, no, just given the situation, given the toughness of the match, of my opponent, I'm just really happy with how I was able to handle things and to keep trekking on".

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